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#-------------------------------------------------------
# Prints instant metadata of partition table and it's
# columns from
# - DD Tables
# - Information_schema tables
# NOTE : $table_name needs to be set.
# : $is_debug to be set for debug build
#-------------------------------------------------------
--disable_query_log
--let $n_parts = `SELECT COUNT(*) from information_schema.innodb_tables where name like "%$table_name%"`
--let $part_no = 0
while ($part_no < $n_parts)
{
--let $part_name = `select NAME from information_schema.innodb_tables where name like "%$table_name%" limit $part_no, 1`
--let $table_id = `SELECT TABLE_ID FROM INFORMATION_SCHEMA.INNODB_TABLES WHERE NAME="$part_name"`
if ($is_debug)
{
# Print DD metadata only once for 1st partition
if ($part_no == 0)
{
--echo # DD Metadata of columns in table
SET SESSION debug= '+d,skip_dd_table_access_check';
eval SELECT ID INTO @tid FROM mysql.tables WHERE NAME='$table_name';
--replace_regex /table_id=[0-9]+;/table_id=TABLE_ID;/
SELECT NAME, ORDINAL_POSITION, TYPE, HAS_NO_DEFAULT, HIDDEN, SE_PRIVATE_DATA
FROM mysql.columns
WHERE TABLE_ID=@tid
ORDER BY ORDINAL_POSITION;
--echo # DD Metadata of partitions in table
SELECT NAME, DESCRIPTION_UTF8, SE_PRIVATE_DATA
FROM mysql.table_partitions
WHERE TABLE_ID=@tid;
}
--echo # Metadata from INFORMATION_SCHEMA.TABLES
eval SELECT NAME, N_COLS, INSTANT_COLS, TOTAL_ROW_VERSIONS,
INITIAL_COLUMN_COUNTS, CURRENT_COLUMN_COUNTS, TOTAL_COLUMN_COUNTS
FROM INFORMATION_SCHEMA.INNODB_TABLES
WHERE TABLE_ID=$table_id;
--echo # Metadata from INFORMATION_SCHEMA.COLUMNS
SET SESSION debug= '+d,show_dropped_column';
eval SELECT NAME, POS, MTYPE, PRTYPE, HAS_DEFAULT,
VERSION_ADDED, VERSION_DROPPED
FROM INFORMATION_SCHEMA.INNODB_COLUMNS
WHERE TABLE_ID=$table_id;
}
if (!$is_debug)
{
--echo # Metadata from INFORMATION_SCHEMA.TABLES
eval SELECT NAME, N_COLS, INSTANT_COLS, TOTAL_ROW_VERSIONS
FROM INFORMATION_SCHEMA.INNODB_TABLES
WHERE TABLE_ID=$table_id;
--echo # Metadata from INFORMATION_SCHEMA.COLUMNS
eval SELECT NAME, POS, MTYPE, PRTYPE, HAS_DEFAULT
FROM INFORMATION_SCHEMA.INNODB_COLUMNS
WHERE TABLE_ID=$table_id;
}
inc $part_no;
}
--enable_query_log
|
