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|
# SOME DESCRIPTIVE TITLE.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: http://bugs.kde.org\n"
"POT-Creation-Date: 2016-07-04 13:02+0000\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <kde-i18n-doc@kde.org>\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
#. Tag: title
#: reference_operator.xml:3
#, no-c-format
msgid "Operators"
msgstr ""
#. Tag: refname
#: reference_operator.xml:6
#, no-c-format
msgid "&&"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:8
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's 2D bounding box intersects B's 2D bounding box."
msgstr ""
#. Tag: funcsynopsis
#: reference_operator.xml:12
#, no-c-format
msgid "<funcprototype> <funcdef>boolean <function>&&</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef> </funcprototype> <funcprototype> <funcdef>boolean <function>&&</function></funcdef> <paramdef> <type>geography </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geography </type> <parameter>B</parameter> </paramdef> </funcprototype>"
msgstr ""
#. Tag: title
#: reference_operator.xml:50 reference_operator.xml:111 reference_operator.xml:176 reference_operator.xml:234 reference_operator.xml:295 reference_operator.xml:353 reference_operator.xml:406 reference_operator.xml:475 reference_operator.xml:546 reference_operator.xml:599 reference_operator.xml:654 reference_operator.xml:712 reference_operator.xml:765 reference_operator.xml:818 reference_operator.xml:899 reference_operator.xml:974 reference_operator.xml:1035 reference_operator.xml:1089 reference_operator.xml:1154
#, no-c-format
msgid "Description"
msgstr ""
#. Tag: para
#: reference_operator.xml:52
#, no-c-format
msgid "The <varname>&&</varname> operator returns <varname>TRUE</varname> if the 2D bounding box of geometry A intersects the 2D bounding box of geometry B."
msgstr ""
#. Tag: para
#: reference_operator.xml:54 reference_operator.xml:115 reference_operator.xml:182 reference_operator.xml:243 reference_operator.xml:301 reference_operator.xml:358 reference_operator.xml:411 reference_operator.xml:551 reference_operator.xml:605 reference_operator.xml:660 reference_operator.xml:717 reference_operator.xml:770 reference_operator.xml:823
#, no-c-format
msgid "This operand will make use of any indexes that may be available on the geometries."
msgstr ""
#. Tag: para
#: reference_operator.xml:57
#, no-c-format
msgid "Enhanced: 2.0.0 support for Polyhedral surfaces was introduced."
msgstr ""
#. Tag: para
#: reference_operator.xml:58
#, no-c-format
msgid "Availability: 1.5.0 support for geography was introduced."
msgstr ""
#. Tag: para
#: reference_operator.xml:59 reference_operator.xml:119 reference_operator.xml:240 reference_operator.xml:492
#, no-c-format
msgid "&curve_support;"
msgstr ""
#. Tag: para
#: reference_operator.xml:60 reference_operator.xml:120 reference_operator.xml:241 reference_operator.xml:493 reference_operator.xml:827
#, no-c-format
msgid "&P_support;"
msgstr ""
#. Tag: title
#: reference_operator.xml:64 reference_operator.xml:187 reference_operator.xml:248 reference_operator.xml:306 reference_operator.xml:363 reference_operator.xml:416 reference_operator.xml:502 reference_operator.xml:556 reference_operator.xml:611 reference_operator.xml:665 reference_operator.xml:722 reference_operator.xml:775 reference_operator.xml:843 reference_operator.xml:922 reference_operator.xml:992 reference_operator.xml:1049
#, no-c-format
msgid "Examples"
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:66
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 && tbl2.column2 AS overlaps\n"
"FROM ( VALUES\n"
" (1, 'LINESTRING(0 0, 3 3)'::geometry),\n"
" (2, 'LINESTRING(0 1, 0 5)'::geometry)) AS tbl1,\n"
"( VALUES\n"
" (3, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | overlaps\n"
"---------+---------+----------\n"
" 1 | 3 | t\n"
" 2 | 3 | f\n"
"(2 rows)"
msgstr ""
#. Tag: title
#: reference_operator.xml:71 reference_operator.xml:139 reference_operator.xml:193 reference_operator.xml:254 reference_operator.xml:312 reference_operator.xml:369 reference_operator.xml:422 reference_operator.xml:508 reference_operator.xml:562 reference_operator.xml:617 reference_operator.xml:671 reference_operator.xml:728 reference_operator.xml:781 reference_operator.xml:848 reference_operator.xml:938 reference_operator.xml:996 reference_operator.xml:1053 reference_operator.xml:1116 reference_operator.xml:1172
#, no-c-format
msgid "See Also"
msgstr ""
#. Tag: para
#: reference_operator.xml:73
#, no-c-format
msgid ", <xref linkend=\"ST_Geometry_Overright\"/>, <xref linkend=\"ST_Geometry_Overbelow\"/>, <xref linkend=\"ST_Geometry_Overleft\"/>, <xref linkend=\"ST_Geometry_Contain\"/>, <xref linkend=\"ST_Geometry_Contained\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:85
#, no-c-format
msgid "&&&"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:87
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's n-D bounding box intersects B's n-D bounding box."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:92
#, no-c-format
msgid "<funcdef>boolean <function>&&&</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:113
#, no-c-format
msgid "The <varname>&&&</varname> operator returns <varname>TRUE</varname> if the n-D bounding box of geometry A intersects the n-D bounding box of geometry B."
msgstr ""
#. Tag: para
#: reference_operator.xml:118
#, no-c-format
msgid "Availability: 2.0.0"
msgstr ""
#. Tag: para
#: reference_operator.xml:121
#, no-c-format
msgid "&T_support;"
msgstr ""
#. Tag: para
#: reference_operator.xml:122
#, no-c-format
msgid "&Z_support;"
msgstr ""
#. Tag: title
#: reference_operator.xml:126
#, no-c-format
msgid "Examples: 3D LineStrings"
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:128
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 &&& tbl2.column2 AS overlaps_3d,\n"
" tbl1.column2 && tbl2.column2 AS overlaps_2d\n"
"FROM ( VALUES\n"
" (1, 'LINESTRING Z(0 0 1, 3 3 2)'::geometry),\n"
" (2, 'LINESTRING Z(1 2 0, 0 5 -1)'::geometry)) AS tbl1,\n"
"( VALUES\n"
" (3, 'LINESTRING Z(1 2 1, 4 6 1)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | overlaps_3d | overlaps_2d\n"
"---------+---------+-------------+-------------\n"
" 1 | 3 | t | t\n"
" 2 | 3 | f | t"
msgstr ""
#. Tag: title
#: reference_operator.xml:132
#, no-c-format
msgid "Examples: 3M LineStrings"
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:134
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 &&& tbl2.column2 AS overlaps_3zm,\n"
" tbl1.column2 && tbl2.column2 AS overlaps_2d\n"
"FROM ( VALUES\n"
" (1, 'LINESTRING M(0 0 1, 3 3 2)'::geometry),\n"
" (2, 'LINESTRING M(1 2 0, 0 5 -1)'::geometry)) AS tbl1,\n"
"( VALUES\n"
" (3, 'LINESTRING M(1 2 1, 4 6 1)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | overlaps_3zm | overlaps_2d\n"
"---------+---------+-------------+-------------\n"
" 1 | 3 | t | t\n"
" 2 | 3 | f | t"
msgstr ""
#. Tag: refname
#: reference_operator.xml:147
#, no-c-format
msgid "&<"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:149
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box overlaps or is to the left of B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:154
#, no-c-format
msgid "<funcdef>boolean <function>&<</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:178
#, no-c-format
msgid "The <varname>&<</varname> operator returns <varname>TRUE</varname> if the bounding box of geometry A overlaps or is to the left of the bounding box of geometry B, or more accurately, overlaps or is NOT to the right of the bounding box of geometry B."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:189
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 &< tbl2.column2 AS overleft\n"
"FROM\n"
" ( VALUES\n"
" (1, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl1,\n"
" ( VALUES\n"
" (2, 'LINESTRING(0 0, 3 3)'::geometry),\n"
" (3, 'LINESTRING(0 1, 0 5)'::geometry),\n"
" (4, 'LINESTRING(6 0, 6 1)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | overleft\n"
"---------+---------+----------\n"
" 1 | 2 | f\n"
" 1 | 3 | f\n"
" 1 | 4 | t\n"
"(3 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:195
#, no-c-format
msgid ", <xref linkend=\"ST_Geometry_Overabove\"/>, <xref linkend=\"ST_Geometry_Overright\"/>, <xref linkend=\"ST_Geometry_Overbelow\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:205
#, no-c-format
msgid "&<|"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:207
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box overlaps or is below B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:212
#, no-c-format
msgid "<funcdef>boolean <function>&<|</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:236
#, no-c-format
msgid "The <varname>&<|</varname> operator returns <varname>TRUE</varname> if the bounding box of geometry A overlaps or is below of the bounding box of geometry B, or more accurately, overlaps or is NOT above the bounding box of geometry B."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:250
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 &<| tbl2.column2 AS overbelow\n"
"FROM\n"
" ( VALUES\n"
" (1, 'LINESTRING(6 0, 6 4)'::geometry)) AS tbl1,\n"
" ( VALUES\n"
" (2, 'LINESTRING(0 0, 3 3)'::geometry),\n"
" (3, 'LINESTRING(0 1, 0 5)'::geometry),\n"
" (4, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | overbelow\n"
"---------+---------+-----------\n"
" 1 | 2 | f\n"
" 1 | 3 | t\n"
" 1 | 4 | t\n"
"(3 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:256
#, no-c-format
msgid ", <xref linkend=\"ST_Geometry_Overabove\"/>, <xref linkend=\"ST_Geometry_Overright\"/>, <xref linkend=\"ST_Geometry_Overleft\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:266
#, no-c-format
msgid "&>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:268
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A' bounding box overlaps or is to the right of B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:273
#, no-c-format
msgid "<funcdef>boolean <function>&></function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:297
#, no-c-format
msgid "The <varname>&></varname> operator returns <varname>TRUE</varname> if the bounding box of geometry A overlaps or is to the right of the bounding box of geometry B, or more accurately, overlaps or is NOT to the left of the bounding box of geometry B."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:308
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 &> tbl2.column2 AS overright\n"
"FROM\n"
" ( VALUES\n"
" (1, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl1,\n"
" ( VALUES\n"
" (2, 'LINESTRING(0 0, 3 3)'::geometry),\n"
" (3, 'LINESTRING(0 1, 0 5)'::geometry),\n"
" (4, 'LINESTRING(6 0, 6 1)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | overright\n"
"---------+---------+-----------\n"
" 1 | 2 | t\n"
" 1 | 3 | t\n"
" 1 | 4 | f\n"
"(3 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:314
#, no-c-format
msgid ", <xref linkend=\"ST_Geometry_Overabove\"/>, <xref linkend=\"ST_Geometry_Overbelow\"/>, <xref linkend=\"ST_Geometry_Overleft\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:324
#, no-c-format
msgid "<<"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:326
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box is strictly to the left of B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:331
#, no-c-format
msgid "<funcdef>boolean <function><<</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:355
#, no-c-format
msgid "The <varname><<</varname> operator returns <varname>TRUE</varname> if the bounding box of geometry A is strictly to the left of the bounding box of geometry B."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:365
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 << tbl2.column2 AS left\n"
"FROM\n"
" ( VALUES\n"
" (1, 'LINESTRING (1 2, 1 5)'::geometry)) AS tbl1,\n"
" ( VALUES\n"
" (2, 'LINESTRING (0 0, 4 3)'::geometry),\n"
" (3, 'LINESTRING (6 0, 6 5)'::geometry),\n"
" (4, 'LINESTRING (2 2, 5 6)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | left\n"
"---------+---------+------\n"
" 1 | 2 | f\n"
" 1 | 3 | t\n"
" 1 | 4 | t\n"
"(3 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:371 reference_operator.xml:564
#, no-c-format
msgid ", <xref linkend=\"ST_Geometry_Above\"/>, <xref linkend=\"ST_Geometry_Below\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:377
#, no-c-format
msgid "<<|"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:379
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box is strictly below B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:384
#, no-c-format
msgid "<funcdef>boolean <function><<|</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:408
#, no-c-format
msgid "The <varname><<|</varname> operator returns <varname>TRUE</varname> if the bounding box of geometry A is strictly below the bounding box of geometry B."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:418
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 <<| tbl2.column2 AS below\n"
"FROM\n"
" ( VALUES\n"
" (1, 'LINESTRING (0 0, 4 3)'::geometry)) AS tbl1,\n"
" ( VALUES\n"
" (2, 'LINESTRING (1 4, 1 7)'::geometry),\n"
" (3, 'LINESTRING (6 1, 6 5)'::geometry),\n"
" (4, 'LINESTRING (2 3, 5 6)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | below\n"
"---------+---------+-------\n"
" 1 | 2 | t\n"
" 1 | 3 | f\n"
" 1 | 4 | f\n"
"(3 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:424
#, no-c-format
msgid ", <xref linkend=\"ST_Geometry_Right\"/>, <xref linkend=\"ST_Geometry_Above\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:430
#, no-c-format
msgid "="
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:432
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box is the same as B's. Uses double precision bounding box."
msgstr ""
#. Tag: funcsynopsis
#: reference_operator.xml:436
#, no-c-format
msgid "<funcprototype> <funcdef>boolean <function>=</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef> </funcprototype> <funcprototype> <funcdef>boolean <function>=</function></funcdef> <paramdef> <type>geography </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geography </type> <parameter>B</parameter> </paramdef> </funcprototype>"
msgstr ""
#. Tag: para
#: reference_operator.xml:477
#, no-c-format
msgid "The <varname>=</varname> operator returns <varname>TRUE</varname> if the bounding box of geometry/geography A is the same as the bounding box of geometry/geography B. PostgreSQL uses the =, <, and > operators defined for geometries to perform internal orderings and comparison of geometries (ie. in a GROUP BY or ORDER BY clause)."
msgstr ""
#. Tag: para
#: reference_operator.xml:482
#, no-c-format
msgid "This is cause for a lot of confusion. When you compare geometryA = geometryB it will return true even when the geometries are clearly different IF their bounding boxes are the same. To check for true equality use <xref linkend=\"ST_OrderingEquals\"/> or <xref linkend=\"ST_Equals\"/>"
msgstr ""
#. Tag: para
#: reference_operator.xml:489
#, no-c-format
msgid "This operand will NOT make use of any indexes that may be available on the geometries."
msgstr ""
#. Tag: para
#: reference_operator.xml:494
#, no-c-format
msgid "Changed: 2.0.0 , the bounding box of geometries was changed to use double precision instead of float4 precision of prior. The side effect of this is that in particular points in prior versions that were a little different may have returned true in prior versions and false in 2.0+ since their float4 boxes would be the same but there float8 (double precision), would be different."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:504
#, no-c-format
msgid ""
"SELECT 'LINESTRING(0 0, 0 1, 1 0)'::geometry = 'LINESTRING(1 1, 0 0)'::geometry;\n"
" ?column?\n"
"----------\n"
" t\n"
"(1 row)\n"
"\n"
"SELECT ST_AsText(column1)\n"
"FROM ( VALUES\n"
" ('LINESTRING(0 0, 1 1)'::geometry),\n"
" ('LINESTRING(1 1, 0 0)'::geometry)) AS foo;\n"
" st_astext\n"
"---------------------\n"
" LINESTRING(0 0,1 1)\n"
" LINESTRING(1 1,0 0)\n"
"(2 rows)\n"
"\n"
"-- Note: the GROUP BY uses the \"=\" to compare for geometry equivalency.\n"
"SELECT ST_AsText(column1)\n"
"FROM ( VALUES\n"
" ('LINESTRING(0 0, 1 1)'::geometry),\n"
" ('LINESTRING(1 1, 0 0)'::geometry)) AS foo\n"
"GROUP BY column1;\n"
" st_astext\n"
"---------------------\n"
" LINESTRING(0 0,1 1)\n"
"(1 row)\n"
"\n"
"-- In versions prior to 2.0, this used to return true --\n"
" SELECT ST_GeomFromText('POINT(1707296.37 4820536.77)') =\n"
" ST_GeomFromText('POINT(1707296.27 4820536.87)') As pt_intersect;\n"
"\n"
"--pt_intersect --\n"
"f"
msgstr ""
#. Tag: para
#: reference_operator.xml:510
#, no-c-format
msgid ", <xref linkend=\"ST_OrderingEquals\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:517
#, no-c-format
msgid ">>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:519
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box is strictly to the right of B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:524
#, no-c-format
msgid "<funcdef>boolean <function>>></function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:548
#, no-c-format
msgid "The <varname>>></varname> operator returns <varname>TRUE</varname> if the bounding box of geometry A is strictly to the right of the bounding box of geometry B."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:558
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 >> tbl2.column2 AS right\n"
"FROM\n"
" ( VALUES\n"
" (1, 'LINESTRING (2 3, 5 6)'::geometry)) AS tbl1,\n"
" ( VALUES\n"
" (2, 'LINESTRING (1 4, 1 7)'::geometry),\n"
" (3, 'LINESTRING (6 1, 6 5)'::geometry),\n"
" (4, 'LINESTRING (0 0, 4 3)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | right\n"
"---------+---------+-------\n"
" 1 | 2 | t\n"
" 1 | 3 | f\n"
" 1 | 4 | f\n"
"(3 rows)"
msgstr ""
#. Tag: refname
#: reference_operator.xml:570
#, no-c-format
msgid "<refname>@</refname>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:572
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box is contained by B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:577
#, no-c-format
msgid "<funcdef>boolean <function>@</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:601
#, no-c-format
msgid "The <varname>@</varname> operator returns <varname>TRUE</varname> if the bounding box of geometry A is completely contained by the bounding box of geometry B."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:613
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 @ tbl2.column2 AS contained\n"
"FROM\n"
" ( VALUES\n"
" (1, 'LINESTRING (1 1, 3 3)'::geometry)) AS tbl1,\n"
" ( VALUES\n"
" (2, 'LINESTRING (0 0, 4 4)'::geometry),\n"
" (3, 'LINESTRING (2 2, 4 4)'::geometry),\n"
" (4, 'LINESTRING (1 1, 3 3)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | contained\n"
"---------+---------+-----------\n"
" 1 | 2 | t\n"
" 1 | 3 | f\n"
" 1 | 4 | t\n"
"(3 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:619 reference_operator.xml:783
#, no-c-format
msgid ", <xref linkend=\"geometry_overlaps\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:625
#, no-c-format
msgid "|&>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:627
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box overlaps or is above B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:632
#, no-c-format
msgid "<funcdef>boolean <function>|&></function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:656
#, no-c-format
msgid "The <varname>|&></varname> operator returns <varname>TRUE</varname> if the bounding box of geometry A overlaps or is above the bounding box of geometry B, or more accurately, overlaps or is NOT below the bounding box of geometry B."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:667
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 |&> tbl2.column2 AS overabove\n"
"FROM\n"
" ( VALUES\n"
" (1, 'LINESTRING(6 0, 6 4)'::geometry)) AS tbl1,\n"
" ( VALUES\n"
" (2, 'LINESTRING(0 0, 3 3)'::geometry),\n"
" (3, 'LINESTRING(0 1, 0 5)'::geometry),\n"
" (4, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | overabove\n"
"---------+---------+-----------\n"
" 1 | 2 | t\n"
" 1 | 3 | f\n"
" 1 | 4 | f\n"
"(3 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:673
#, no-c-format
msgid ", <xref linkend=\"ST_Geometry_Overright\"/>, <xref linkend=\"ST_Geometry_Overbelow\"/>, <xref linkend=\"ST_Geometry_Overleft\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:683
#, no-c-format
msgid "|>>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:685
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box is strictly above B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:690
#, no-c-format
msgid "<funcdef>boolean <function>|>></function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:714
#, no-c-format
msgid "The <varname>|>></varname> operator returns <varname>TRUE</varname> if the bounding box of geometry A is strictly to the right of the bounding box of geometry B."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:724
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 |>> tbl2.column2 AS above\n"
"FROM\n"
" ( VALUES\n"
" (1, 'LINESTRING (1 4, 1 7)'::geometry)) AS tbl1,\n"
" ( VALUES\n"
" (2, 'LINESTRING (0 0, 4 2)'::geometry),\n"
" (3, 'LINESTRING (6 1, 6 5)'::geometry),\n"
" (4, 'LINESTRING (2 3, 5 6)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | above\n"
"---------+---------+-------\n"
" 1 | 2 | t\n"
" 1 | 3 | f\n"
" 1 | 4 | f\n"
"(3 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:730
#, no-c-format
msgid ", <xref linkend=\"ST_Geometry_Right\"/>, <xref linkend=\"ST_Geometry_Below\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:736
#, no-c-format
msgid "<refname>~</refname>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:738
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box contains B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:743
#, no-c-format
msgid "<funcdef>boolean <function>~</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:767
#, no-c-format
msgid "The <varname>~</varname> operator returns <varname>TRUE</varname> if the bounding box of geometry A completely contains the bounding box of geometry B."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:777
#, no-c-format
msgid ""
"SELECT tbl1.column1, tbl2.column1, tbl1.column2 ~ tbl2.column2 AS contains\n"
"FROM\n"
" ( VALUES\n"
" (1, 'LINESTRING (0 0, 3 3)'::geometry)) AS tbl1,\n"
" ( VALUES\n"
" (2, 'LINESTRING (0 0, 4 4)'::geometry),\n"
" (3, 'LINESTRING (1 1, 2 2)'::geometry),\n"
" (4, 'LINESTRING (0 0, 3 3)'::geometry)) AS tbl2;\n"
"\n"
" column1 | column1 | contains\n"
"---------+---------+----------\n"
" 1 | 2 | f\n"
" 1 | 3 | t\n"
" 1 | 4 | t\n"
"(3 rows)"
msgstr ""
#. Tag: refname
#: reference_operator.xml:789
#, no-c-format
msgid "<refname>~=</refname>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:791
#, no-c-format
msgid "Returns <varname>TRUE</varname> if A's bounding box is the same as B's."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:796
#, no-c-format
msgid "<funcdef>boolean <function>~=</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:820
#, no-c-format
msgid "The <varname>~=</varname> operator returns <varname>TRUE</varname> if the bounding box of geometry/geography A is the same as the bounding box of geometry/geography B."
msgstr ""
#. Tag: para
#: reference_operator.xml:826
#, no-c-format
msgid "Availability: 1.5.0 changed behavior"
msgstr ""
#. Tag: para
#: reference_operator.xml:830
#, no-c-format
msgid "This operator has changed behavior in PostGIS 1.5 from testing for actual geometric equality to only checking for bounding box equality. To complicate things it also depends on if you have done a hard or soft upgrade which behavior your database has. To find out which behavior your database has you can run the query below. To check for true equality use <xref linkend=\"ST_OrderingEquals\"/> or <xref linkend=\"ST_Equals\"/> and to check for bounding box equality <xref linkend=\"ST_Geometry_EQ\"/>; operator is a safer option."
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:844
#, no-c-format
msgid ""
"select 'LINESTRING(0 0, 1 1)'::geometry ~= 'LINESTRING(0 1, 1 0)'::geometry as equality;\n"
" equality |\n"
"-----------------+\n"
" t |"
msgstr ""
#. Tag: para
#: reference_operator.xml:845
#, no-c-format
msgid "The above can be used to test if you have the new or old behavior of ~= operator."
msgstr ""
#. Tag: para
#: reference_operator.xml:849
#, no-c-format
msgid ", <xref linkend=\"ST_OrderingEquals\"/>, <xref linkend=\"ST_Geometry_EQ\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:855
#, no-c-format
msgid "<->"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:857
#, no-c-format
msgid "Returns the 2D distance between A and B."
msgstr ""
#. Tag: funcsynopsis
#: reference_operator.xml:863
#, no-c-format
msgid "<funcprototype> <funcdef>double precision <function><-></function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef> </funcprototype> <funcprototype> <funcdef>double precision <function><-></function></funcdef> <paramdef> <type>geography </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geography </type> <parameter>B</parameter> </paramdef> </funcprototype>"
msgstr ""
#. Tag: para
#: reference_operator.xml:901
#, no-c-format
msgid "The <varname><-></varname> operator returns the 2D distance between two geometries. Used in the \"ORDER BY\" clause provides index-assisted nearest-neighbor result sets. For PostgreSQL below 9.5 only gives centroid distance of bounding boxes and for PostgreSQL 9.5+, does true KNN distance search giving true distance between geometries, and distance sphere for geographies."
msgstr ""
#. Tag: para
#: reference_operator.xml:910
#, no-c-format
msgid "This operand will make use of 2D GiST indexes that may be available on the geometries. It is different from other operators that use spatial indexes in that the spatial index is only used when the operator is in the ORDER BY clause."
msgstr ""
#. Tag: para
#: reference_operator.xml:911 reference_operator.xml:1104
#, no-c-format
msgid "Index only kicks in if one of the geometries is a constant (not in a subquery/cte). e.g. 'SRID=3005;POINT(1011102 450541)'::geometry instead of a.geom"
msgstr ""
#. Tag: para
#: reference_operator.xml:912
#, no-c-format
msgid "Refer to <ulink url=\"http://workshops.opengeo.org/postgis-intro/knn.html\">OpenGeo workshop: Nearest-Neighbour Searching</ulink> for real live example."
msgstr ""
#. Tag: para
#: reference_operator.xml:914
#, no-c-format
msgid "Enhanced: 2.2.0 -- True KNN (\"K nearest neighbor\") behavior for geometry and geography for PostgreSQL 9.5+. Note for geography KNN is based on sphere rather than spheroid. For PostgreSQL 9.4 and below, geography support is new but only supports centroid box."
msgstr ""
#. Tag: para
#: reference_operator.xml:915
#, no-c-format
msgid "Changed: 2.2.0 -- For PostgreSQL 9.5 users, old Hybrid syntax may be slower, so you'll want to get rid of that hack if you are running your code only on PostGIS 2.2+ 9.5+. See examples below."
msgstr ""
#. Tag: para
#: reference_operator.xml:916
#, no-c-format
msgid "Availability: 2.0.0 -- Weak KNN provides nearest neighbors based on geometry centroid distances instead of true distances. Exact results for points, inexact for all other types. Available for PostgreSQL 9.1+"
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:923
#, no-c-format
msgid ""
"<![CDATA[SELECT ST_Distance(geom, 'SRID=3005;POINT(1011102 450541)'::geometry) as d,edabbr, vaabbr\n"
"FROM va2005\n"
"ORDER BY d limit 10;]]>\n"
"\n"
" d | edabbr | vaabbr\n"
"------------------+--------+--------\n"
" 0 | ALQ | 128\n"
" 5541.57712511724 | ALQ | 129A\n"
" 5579.67450712005 | ALQ | 001\n"
" 6083.4207708641 | ALQ | 131\n"
" 7691.2205404848 | ALQ | 003\n"
" 7900.75451037313 | ALQ | 122\n"
" 8694.20710669982 | ALQ | 129B\n"
" 9564.24289057111 | ALQ | 130\n"
" 12089.665931705 | ALQ | 127\n"
" 18472.5531479404 | ALQ | 002\n"
"(10 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:924
#, no-c-format
msgid "Then the KNN raw answer:"
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:927
#, no-c-format
msgid ""
"<![CDATA[SELECT st_distance(geom, 'SRID=3005;POINT(1011102 450541)'::geometry) as d,edabbr, vaabbr\n"
"FROM va2005\n"
"ORDER BY geom <-> 'SRID=3005;POINT(1011102 450541)'::geometry limit 10;]]>\n"
"\n"
" d | edabbr | vaabbr\n"
"------------------+--------+--------\n"
" 0 | ALQ | 128\n"
" 5541.57712511724 | ALQ | 129A\n"
" 5579.67450712005 | ALQ | 001\n"
" 6083.4207708641 | ALQ | 131\n"
" 7691.2205404848 | ALQ | 003\n"
" 7900.75451037313 | ALQ | 122\n"
" 8694.20710669982 | ALQ | 129B\n"
" 9564.24289057111 | ALQ | 130\n"
" 12089.665931705 | ALQ | 127\n"
" 18472.5531479404 | ALQ | 002\n"
"(10 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:928
#, no-c-format
msgid "If you run \"EXPLAIN ANALYZE\" on the two queries you would see a performance improvement for the second."
msgstr ""
#. Tag: para
#: reference_operator.xml:932
#, no-c-format
msgid "For users running with PostgreSQL < 9.5, use a hybrid query to find the true nearest neighbors. First a CTE query using the index-assisted KNN, then an exact query to get correct ordering:"
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:935
#, no-c-format
msgid ""
"<![CDATA[WITH index_query AS (\n"
" SELECT ST_Distance(geom, 'SRID=3005;POINT(1011102 450541)'::geometry) as d,edabbr, vaabbr\n"
" FROM va2005\n"
" ORDER BY geom <-> 'SRID=3005;POINT(1011102 450541)'::geometry LIMIT 100)\n"
" SELECT *\n"
" FROM index_query\n"
" ORDER BY d limit 10;]]>\n"
"\n"
" d | edabbr | vaabbr\n"
"------------------+--------+--------\n"
" 0 | ALQ | 128\n"
" 5541.57712511724 | ALQ | 129A\n"
" 5579.67450712005 | ALQ | 001\n"
" 6083.4207708641 | ALQ | 131\n"
" 7691.2205404848 | ALQ | 003\n"
" 7900.75451037313 | ALQ | 122\n"
" 8694.20710669982 | ALQ | 129B\n"
" 9564.24289057111 | ALQ | 130\n"
" 12089.665931705 | ALQ | 127\n"
" 18472.5531479404 | ALQ | 002\n"
"(10 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:939
#, no-c-format
msgid ", <xref linkend=\"ST_Distance\"/>, <xref linkend=\"geometry_distance_box\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:945
#, no-c-format
msgid "<refname>|=|</refname>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:947
#, no-c-format
msgid "Returns the distance between A and B trajectories at their closest point of approach."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:954
#, no-c-format
msgid "<funcdef>double precision <function>|=|</function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:976
#, no-c-format
msgid "The <varname>|=|</varname> operator returns the 3D distance between two trajectories (See <xref linkend=\"ST_IsValidTrajectory\"/>). This is the same as <xref linkend=\"ST_DistanceCPA\"/> but as an operator it can be used for doing nearest neightbor searches using an N-dimensional index (requires PostgreSQL 9.5.0 or higher)."
msgstr ""
#. Tag: para
#: reference_operator.xml:984
#, no-c-format
msgid "This operand will make use of ND GiST indexes that may be available on the geometries. It is different from other operators that use spatial indexes in that the spatial index is only used when the operator is in the ORDER BY clause."
msgstr ""
#. Tag: para
#: reference_operator.xml:985
#, no-c-format
msgid "Index only kicks in if one of the geometries is a constant (not in a subquery/cte). e.g. 'SRID=3005;LINESTRINGM(0 0 0,0 0 1)'::geometry instead of a.geom"
msgstr ""
#. Tag: para
#: reference_operator.xml:987
#, no-c-format
msgid "Availability: 2.2.0. Index-supported only available for PostgreSQL 9.5+"
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:993
#, no-c-format
msgid ""
"-- Save a literal query trajectory in a psql variable...\n"
"\\set qt 'ST_AddMeasure(ST_MakeLine(ST_MakePointM(-350,300,0),ST_MakePointM(-410,490,0)),10,20)'\n"
"-- Run the query !\n"
"SELECT track_id, dist FROM (\n"
" SELECT track_id, ST_DistanceCPA(tr,:qt) dist\n"
" FROM trajectories\n"
" ORDER BY tr |=| :qt\n"
" LIMIT 5\n"
") foo;\n"
" track_id dist\n"
"----------+-------------------\n"
" 395 | 0.576496831518066\n"
" 380 | 5.06797130410151\n"
" 390 | 7.72262293958322\n"
" 385 | 9.8004461358071\n"
" 405 | 10.9534397988433\n"
"(5 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:997
#, no-c-format
msgid ", <xref linkend=\"ST_ClosestPointOfApproach\"/>, <xref linkend=\"ST_IsValidTrajectory\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:1007
#, no-c-format
msgid "<#>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:1009
#, no-c-format
msgid "Returns the 2D distance between A and B bounding boxes."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:1016
#, no-c-format
msgid "<funcdef>double precision <function><#></function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:1037
#, no-c-format
msgid "The <varname><#></varname> operator returns distance between two floating point bounding boxes, possibly reading them from a spatial index (PostgreSQL 9.1+ required). Useful for doing nearest neighbor <emphasis role=\"strong\">approximate</emphasis> distance ordering."
msgstr ""
#. Tag: para
#: reference_operator.xml:1039 reference_operator.xml:1158
#, no-c-format
msgid "This operand will make use of any indexes that may be available on the geometries. It is different from other operators that use spatial indexes in that the spatial index is only used when the operator is in the ORDER BY clause."
msgstr ""
#. Tag: para
#: reference_operator.xml:1042
#, no-c-format
msgid "Index only kicks in if one of the geometries is a constant e.g. ORDER BY (ST_GeomFromText('POINT(1 2)') <#> geom) instead of g1.geom <#>."
msgstr ""
#. Tag: para
#: reference_operator.xml:1044
#, no-c-format
msgid "Availability: 2.0.0 -- KNN only available for PostgreSQL 9.1+"
msgstr ""
#. Tag: programlisting
#: reference_operator.xml:1050
#, no-c-format
msgid ""
"<![CDATA[SELECT *\n"
"FROM (\n"
"SELECT b.tlid, b.mtfcc,\n"
" b.geom <#> ST_GeomFromText('LINESTRING(746149 2948672,745954 2948576,\n"
" 745787 2948499,745740 2948468,745712 2948438,\n"
" 745690 2948384,745677 2948319)',2249) As b_dist,\n"
" ST_Distance(b.geom, ST_GeomFromText('LINESTRING(746149 2948672,745954 2948576,\n"
" 745787 2948499,745740 2948468,745712 2948438,\n"
" 745690 2948384,745677 2948319)',2249)) As act_dist\n"
" FROM bos_roads As b\n"
" ORDER BY b_dist, b.tlid\n"
" LIMIT 100) As foo\n"
" ORDER BY act_dist, tlid LIMIT 10;]]>\n"
"\n"
" tlid | mtfcc | b_dist | act_dist\n"
"-----------+-------+------------------+------------------\n"
" 85732027 | S1400 | 0 | 0\n"
" 85732029 | S1400 | 0 | 0\n"
" 85732031 | S1400 | 0 | 0\n"
" 85734335 | S1400 | 0 | 0\n"
" 85736037 | S1400 | 0 | 0\n"
" 624683742 | S1400 | 0 | 128.528874268666\n"
" 85719343 | S1400 | 260.839270432962 | 260.839270432962\n"
" 85741826 | S1400 | 164.759294123275 | 260.839270432962\n"
" 85732032 | S1400 | 277.75 | 311.830282365264\n"
" 85735592 | S1400 | 222.25 | 311.830282365264\n"
"(10 rows)"
msgstr ""
#. Tag: para
#: reference_operator.xml:1054
#, no-c-format
msgid ", <xref linkend=\"ST_Distance\"/>, <xref linkend=\"geometry_distance_knn\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:1060
#, no-c-format
msgid "<<->>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:1062
#, no-c-format
msgid "Returns the n-D distance between the centroids of A and B bounding boxes."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:1070
#, no-c-format
msgid "<funcdef>double precision <function><<->></function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:1091
#, no-c-format
msgid "The <varname><<->></varname> operator returns the n-D (euclidean) distance between the centroids of the bounding boxes of two geometries. Useful for doing nearest neighbor <emphasis role=\"strong\">approximate</emphasis> distance ordering."
msgstr ""
#. Tag: para
#: reference_operator.xml:1098
#, no-c-format
msgid "This operand will make use of n-D GiST indexes that may be available on the geometries. It is different from other operators that use spatial indexes in that the spatial index is only used when the operator is in the ORDER BY clause."
msgstr ""
#. Tag: para
#: reference_operator.xml:1110 reference_operator.xml:1167
#, no-c-format
msgid "Availability: 2.2.0 -- KNN only available for PostgreSQL 9.1+"
msgstr ""
#. Tag: para
#: reference_operator.xml:1117
#, no-c-format
msgid ", <xref linkend=\"geometry_distance_knn\"/>"
msgstr ""
#. Tag: refname
#: reference_operator.xml:1126
#, no-c-format
msgid "<<#>>"
msgstr ""
#. Tag: refpurpose
#: reference_operator.xml:1128
#, no-c-format
msgid "Returns the n-D distance between A and B bounding boxes."
msgstr ""
#. Tag: funcprototype
#: reference_operator.xml:1135
#, no-c-format
msgid "<funcdef>double precision <function><<#>></function></funcdef> <paramdef> <type>geometry </type> <parameter>A</parameter> </paramdef> <paramdef> <type>geometry </type> <parameter>B</parameter> </paramdef>"
msgstr ""
#. Tag: para
#: reference_operator.xml:1156
#, no-c-format
msgid "The <varname><<#>></varname> operator returns distance between two floating point bounding boxes, possibly reading them from a spatial index (PostgreSQL 9.1+ required). Useful for doing nearest neighbor <emphasis role=\"strong\">approximate</emphasis> distance ordering."
msgstr ""
#. Tag: para
#: reference_operator.xml:1161
#, no-c-format
msgid "Index only kicks in if one of the geometries is a constant e.g. ORDER BY (ST_GeomFromText('POINT(1 2)') <<#>> geom) instead of g1.geom <<#>>."
msgstr ""
#. Tag: para
#: reference_operator.xml:1173
#, no-c-format
msgid ", <xref linkend=\"geometry_distance_box\"/>"
msgstr ""
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