File: statistics_struct.test

package info (click to toggle)
duckdb 1.5.1-2
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 299,196 kB
  • sloc: cpp: 865,414; ansic: 57,292; python: 18,871; sql: 12,663; lisp: 11,751; yacc: 7,412; lex: 1,682; sh: 747; makefile: 558
file content (27 lines) | stat: -rw-r--r-- 703 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
# name: test/optimizer/statistics/statistics_struct.test
# description: Statistics propagation test with structs
# group: [statistics]

statement ok
CREATE TABLE structs AS SELECT {'i': i} c FROM range(4) tbl(i);

statement ok
PRAGMA explain_output = OPTIMIZED_ONLY;

# we can statically determine IS NULL/IS NOT NULL are false, if there are no null values for this column
query II
EXPLAIN SELECT c IS NULL FROM structs;
----
logical_opt	<!REGEX>:.*IS_NULL.*

# the same applies to c['i']
query II
EXPLAIN SELECT c['i'] IS NULL FROM structs;
----
logical_opt	<!REGEX>:.*IS_NULL.*

# filter is out of range
query II
EXPLAIN SELECT * FROM structs WHERE c['i']=4;
----
logical_opt	<REGEX>:.*EMPTY_RESULT.*