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Update extensions with GIN/GIST support for parallel query.

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Commit 749a787c5b bumped the extension
version on all of these extensions already, and we haven't had a
release since then, so we can make further changes without bumping the
extension version again.  Take this opportunity to mark all of the
functions exported by these modules PARALLEL SAFE -- except for
pg_trgm's set_limit().  Mark that one PARALLEL RESTRICTED, because it
makes a persistent change to a GUC value.

Note that some of the markings added by this commit don't have any
effect; for example, gseg_picksplit() isn't likely to be mentioned
explicitly in a query and therefore it's parallel-safety marking will
never be consulted.  But this commit just marks everything for
consistency: if it were somehow used in a query, that would be fine as
far as parallel query is concerned, since it does not consult any
backend-private state, attempt to write data, etc.

Andreas Karlsson, with a few revisions by me.
This commit is contained in:
Robert Haas
2016-06-14 13:34:37 -04:00
parent 131c7e70b4
commit 2910fc8239
12 changed files with 553 additions and 274 deletions
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26
contrib/pg_trgm/pg_trgm--1.2--1.3.sql
View File

@@ -22,3 +22,29 @@ WHERE oid = pg_catalog.to_regprocedure(oldproc);
UPDATE pg_catalog.pg_proc SET
prorettype = 'gtrgm'::pg_catalog.regtype
WHERE oid = pg_catalog.to_regprocedure('gtrgm_union(internal,internal)');
ALTER FUNCTION set_limit(float4) PARALLEL RESTRICTED;
ALTER FUNCTION show_limit() PARALLEL SAFE;
ALTER FUNCTION show_trgm(text) PARALLEL SAFE;
ALTER FUNCTION similarity(text, text) PARALLEL SAFE;
ALTER FUNCTION similarity_op(text, text) PARALLEL SAFE;
ALTER FUNCTION word_similarity(text, text) PARALLEL SAFE;
ALTER FUNCTION word_similarity_op(text, text) PARALLEL SAFE;
ALTER FUNCTION word_similarity_commutator_op(text, text) PARALLEL SAFE;
ALTER FUNCTION similarity_dist(text, text) PARALLEL SAFE;
ALTER FUNCTION word_similarity_dist_op(text, text) PARALLEL SAFE;
ALTER FUNCTION word_similarity_dist_commutator_op(text, text) PARALLEL SAFE;
ALTER FUNCTION gtrgm_in(cstring) PARALLEL SAFE;
ALTER FUNCTION gtrgm_out(gtrgm) PARALLEL SAFE;
ALTER FUNCTION gtrgm_consistent(internal, text, smallint, oid, internal) PARALLEL SAFE;
ALTER FUNCTION gtrgm_distance(internal, text, smallint, oid, internal) PARALLEL SAFE;
ALTER FUNCTION gtrgm_compress(internal) PARALLEL SAFE;
ALTER FUNCTION gtrgm_decompress(internal) PARALLEL SAFE;
ALTER FUNCTION gtrgm_penalty(internal, internal, internal) PARALLEL SAFE;
ALTER FUNCTION gtrgm_picksplit(internal, internal) PARALLEL SAFE;
ALTER FUNCTION gtrgm_union(internal, internal) PARALLEL SAFE;
ALTER FUNCTION gtrgm_same(gtrgm, gtrgm, internal) PARALLEL SAFE;
ALTER FUNCTION gin_extract_value_trgm(text, internal) PARALLEL SAFE;
ALTER FUNCTION gin_extract_query_trgm(text, internal, int2, internal, internal, internal, internal) PARALLEL SAFE;
ALTER FUNCTION gin_trgm_consistent(internal, int2, text, int4, internal, internal, internal, internal) PARALLEL SAFE;
ALTER FUNCTION gin_trgm_triconsistent(internal, int2, text, int4, internal, internal, internal) PARALLEL SAFE;

50
contrib/pg_trgm/pg_trgm--1.3.sql
View File

@@ -7,28 +7,28 @@
CREATE FUNCTION set_limit(float4)
RETURNS float4
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT VOLATILE;
LANGUAGE C STRICT VOLATILE PARALLEL RESTRICTED;
-- Deprecated function
CREATE FUNCTION show_limit()
RETURNS float4
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT STABLE;
LANGUAGE C STRICT STABLE PARALLEL SAFE;
CREATE FUNCTION show_trgm(text)
RETURNS _text
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT IMMUTABLE;
LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
CREATE FUNCTION similarity(text,text)
RETURNS float4
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT IMMUTABLE;
LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
CREATE FUNCTION similarity_op(text,text)
RETURNS bool
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT STABLE; -- stable because depends on pg_trgm.similarity_threshold
LANGUAGE C STRICT STABLE PARALLEL SAFE; -- stable because depends on pg_trgm.similarity_threshold
CREATE OPERATOR % (
LEFTARG = text,
@@ -42,17 +42,17 @@ CREATE OPERATOR % (
CREATE FUNCTION word_similarity(text,text)
RETURNS float4
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT IMMUTABLE;
LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
CREATE FUNCTION word_similarity_op(text,text)
RETURNS bool
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT STABLE; -- stable because depends on pg_trgm.word_similarity_threshold
LANGUAGE C STRICT STABLE PARALLEL SAFE; -- stable because depends on pg_trgm.word_similarity_threshold
CREATE FUNCTION word_similarity_commutator_op(text,text)
RETURNS bool
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT STABLE; -- stable because depends on pg_trgm.word_similarity_threshold
LANGUAGE C STRICT STABLE PARALLEL SAFE; -- stable because depends on pg_trgm.word_similarity_threshold
CREATE OPERATOR <% (
LEFTARG = text,
@@ -75,7 +75,7 @@ CREATE OPERATOR %> (
CREATE FUNCTION similarity_dist(text,text)
RETURNS float4
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT IMMUTABLE;
LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
CREATE OPERATOR <-> (
LEFTARG = text,
@@ -87,12 +87,12 @@ CREATE OPERATOR <-> (
CREATE FUNCTION word_similarity_dist_op(text,text)
RETURNS float4
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT IMMUTABLE;
LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
CREATE FUNCTION word_similarity_dist_commutator_op(text,text)
RETURNS float4
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT IMMUTABLE;
LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
CREATE OPERATOR <<-> (
LEFTARG = text,
@@ -112,12 +112,12 @@ CREATE OPERATOR <->> (
CREATE FUNCTION gtrgm_in(cstring)
RETURNS gtrgm
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT IMMUTABLE;
LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
CREATE FUNCTION gtrgm_out(gtrgm)
RETURNS cstring
AS 'MODULE_PATHNAME'
LANGUAGE C STRICT IMMUTABLE;
LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
CREATE TYPE gtrgm (
INTERNALLENGTH = -1,
@@ -129,42 +129,42 @@ CREATE TYPE gtrgm (
CREATE FUNCTION gtrgm_consistent(internal,text,smallint,oid,internal)
RETURNS bool
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
CREATE FUNCTION gtrgm_distance(internal,text,smallint,oid,internal)
RETURNS float8
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
CREATE FUNCTION gtrgm_compress(internal)
RETURNS internal
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
CREATE FUNCTION gtrgm_decompress(internal)
RETURNS internal
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
CREATE FUNCTION gtrgm_penalty(internal,internal,internal)
RETURNS internal
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
CREATE FUNCTION gtrgm_picksplit(internal, internal)
RETURNS internal
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
CREATE FUNCTION gtrgm_union(internal, internal)
RETURNS gtrgm
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
CREATE FUNCTION gtrgm_same(gtrgm, gtrgm, internal)
RETURNS internal
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
-- create the operator class for gist
CREATE OPERATOR CLASS gist_trgm_ops
@@ -207,17 +207,17 @@ ALTER OPERATOR FAMILY gist_trgm_ops USING gist ADD
CREATE FUNCTION gin_extract_value_trgm(text, internal)
RETURNS internal
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
CREATE FUNCTION gin_extract_query_trgm(text, internal, int2, internal, internal, internal, internal)
RETURNS internal
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
CREATE FUNCTION gin_trgm_consistent(internal, int2, text, int4, internal, internal, internal, internal)
RETURNS bool
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
-- create the operator class for gin
CREATE OPERATOR CLASS gin_trgm_ops
@@ -247,7 +247,7 @@ ALTER OPERATOR FAMILY gin_trgm_ops USING gin ADD
CREATE FUNCTION gin_trgm_triconsistent(internal, int2, text, int4, internal, internal, internal)
RETURNS "char"
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE STRICT;
LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
ALTER OPERATOR FAMILY gin_trgm_ops USING gin ADD
OPERATOR 7 %> (text, text),