提交 a8db85bd authored 作者: Evgenij Ryazanov's avatar Evgenij Ryazanov

Update ANY / SOME documentation

上级 96b77248
......@@ -2162,6 +2162,18 @@ compare { { { ALL | ANY | SOME } ( select ) } | operand }
","
The right hand side of a condition.
Quantified comparison predicate ALL returns TRUE if specified comparison operation between
left size of condition and each row from a subquery returns TRUE, including case when there are no rows.
ALL predicate returns FALSE if at least one such comparison returns FALSE.
Otherwise it returns NULL.
Quantified comparison predicates ANY and SOME return TRUE if specified comparison operation between
left size of condition and at least one value from a subquery returns TRUE.
ANY and SOME predicates return FALSE if all such comparisons return FALSE.
Otherwise it returns NULL.
Note that these predicates have priority over ANY and SOME aggregate functions with subquery on the right side.
Use parentheses around aggregate function.
The conditions ""IS [ NOT ]"" and ""IS [ NOT ] DISTINCT FROM"" are null-safe, meaning
NULL is considered the same as NULL, and the condition never evaluates to NULL.
......@@ -2179,6 +2191,8 @@ ILIKE does a case-insensitive compare.
When comparing with REGEXP, regular expression matching is used.
See Java ""Matcher.find"" for details.
","
VALUE > 10
A IS NOT DISTINCT FROM B
LIKE 'Jo%'
"
......@@ -3469,8 +3483,13 @@ EVERY(ID>10)
Returns true if any expression is true.
If no rows are selected, the result is NULL.
Aggregates are only allowed in select statements.
Note that if ANY or SOME aggregate function is placed on the right side of comparison operation
and argument of this function is a subquery additional parentheses around aggregate function are required,
otherwise it will be parsed as quantified comparison predicate.
","
ANY(NAME LIKE 'W%')
A = (ANY((SELECT B FROM T)))
"
"Functions (Aggregate)","COUNT","
......
......@@ -804,4 +804,4 @@ qualification opportunity jumping exploited unacceptable vrs duplicated
queryparser tokenized freeze factorings recompilation unenclosed rfe dsync
econd irst bcef ordinality nord unnest
analyst occupation distributive josaph aor engineer sajeewa isuru randil kevin doctor businessman artist ashan
corrupts splitted disruption unintentional octets preconditions
corrupts splitted disruption unintentional octets preconditions predicates subq
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