POSIX.2 regular expressions NAME regex - POSIX.2 regular expressions DESCRIPTION Regular expressions ("RE"s),...POSIX.2 regular expressions NAME regex - POSIX.2 regular expressions DESCRIPTION Regular expressions ("RE"s),......] where column_constraint is: [ CONSTRAINT constraint_name ] { NOT NULL | NULL | CHECK ( expression ) [ NO INHERIT ] | DEFAULT default_expr | GENERATED ALWAYS AS ( generation_ex…...or may not be valid. cell The data field in the hash table. \ndhitems So the value of A [ expr is stored in the cell field, and if expr is an integer, then expr is stored in iva…...TS ( parent_table [, ... ] ) ] [ PARTITION BY { RANGE | LIST | HASH } ( { column_name | ( expression ) } [ COLLATE collation ] [ opclass ] [, ... ] ) ] [ USING method ] [ WITH (…...concatenate. Returns the index in sp[0]. a_del Delete an array item . Usage: delete array[expr] Parameters: sp[0] points to array sp[-1] is an expr a_length Find the length of a…...OR REPLACE ] PROCEDURE name ( [ [ argmode ] [ argname ] argtype [ { DEFAULT | = } default_expr ] [, ...] ] ) { LANGUAGE lang_name | TRANSFORM { FOR TYPE type_name } [, ... ] | […...] ALTER [ COLUMN ] column_name [ SET DATA ] TYPE data_type [ COLLATE collation ] [ USING expression ] ALTER [ COLUMN ] column_name SET DEFAULT expression ALTER [ COLUMN ] column…...ole driver. GB 2312 GB 2312 is a mainland Chinese national standard character set used to express simplified Chinese. Just like JIS X 0208, characters are mapped into a 94x94 tw…...extended statistics SYNOPSIS CREATE STATISTICS [ [ IF NOT EXISTS ] statistics_name ] ON ( expression ) FROM table_name CREATE STATISTICS [ [ IF NOT EXISTS ] statistics_name ] [ …...le_name | PUBLIC | CURRENT_ROLE | CURRENT_USER | SESSION_USER } [, ...] ] [ USING ( using_expression ) ] [ WITH CHECK ( check_expression ) ] DESCRIPTION The CREATE POLICY comman…...or view SYNOPSIS [ WITH [ RECURSIVE ] with_query [, ...] ] SELECT [ ALL | DISTINCT [ ON ( expression [, ...] ) ] ] [ { * | expression [ [ AS ] output_name ] } [, ...] ] [ FROM f…...ot between brackets) matches any string, including the empty string. Character classes An expression " [...] " where the first character after the leading '[' is not an '!' matc…...a new domain SYNOPSIS CREATE DOMAIN name [ AS ] data_type [ COLLATE collation ] [ DEFAULT expression ] [ domain_constraint [ ... ] ] where domain_constraint is: [ CONSTRAINT con…...OR REPLACE ] FUNCTION name ( [ [ argmode ] [ argname ] argtype [ { DEFAULT | = } default_expr ] [, ...] ] ) [ RETURNS rettype | RETURNS TABLE ( column_name column_type [, ...] )…...le_name | PUBLIC | CURRENT_ROLE | CURRENT_USER | SESSION_USER } [, ...] ] [ USING ( using_expression ) ] [ WITH CHECK ( check_expression ) ] DESCRIPTION ALTER POLICY changes the…compute a set of rows NAME VALUES - compute a set of rows SYNOPSIS VALUES ( expression [, ...] ) [, ...] [ ORDER BY sort_expression [ ASC | DESC | USING operator ] [, .........e namespace.) /proc/ pid /timens_offsets Associated with each time namespace are offsets, expressed with respect to the initial time namespace, that define the values of the mon…...umn_name [, ...] ) ] [ OVERRIDING { SYSTEM | USER } VALUE ] { DEFAULT VALUES | VALUES ( { expression | DEFAULT } [, ...] ) [, ...] | query } [ ON CONFLICT [ conflict_target ] co…...] [ [ IF NOT EXISTS ] name ] ON [ ONLY ] table_name [ USING method ] ( { column_name | ( expression ) } [ COLLATE collation ] [ opclass [ ( opclass_parameter = value [, ... ] ) …