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postgresql/src/backend/utils/adt
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Tom Lane 1fb57af920 Create the infrastructure for planner support functions. 
Rename/repurpose pg_proc.protransform as "prosupport".  The idea is
still that it names an internal function that provides knowledge to
the planner about the behavior of the function it's attached to;
but redesign the API specification so that it's not limited to doing
just one thing, but can support an extensible set of requests.

The original purpose of simplifying a function call is handled by
the first request type to be invented, SupportRequestSimplify.
Adjust all the existing transform functions to handle this API,
and rename them fron "xxx_transform" to "xxx_support" to reflect
the potential generalization of what they do.  (Since we never
previously provided any way for extensions to add transform functions,
this change doesn't create an API break for them.)

Also add DDL and pg_dump support for attaching a support function to a
user-defined function.  Unfortunately, DDL access has to be restricted
to superusers, at least for now; but seeing that support functions
will pretty much have to be written in C, that limitation is just
theoretical.  (This support is untested in this patch, but a follow-on
patch will add cases that exercise it.)

Discussion: https://postgr.es/m/15193.1548028093@sss.pgh.pa.us
 		2019-02-09 18:08:48 -05:00
..
Makefile Add pg_partition_tree to display information about partitions 2018-10-30 10:25:06 +09:00
acl.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
amutils.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
array_expanded.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
array_selfuncs.c Refactor planner's header files. 2019-01-29 15:48:51 -05:00
array_typanalyze.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
array_userfuncs.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
arrayfuncs.c Change function call information to be variable length. 2019-01-26 14:17:52 -08:00
arrayutils.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
ascii.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
bool.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
cash.c Correct constness of a few variables. 2018-10-15 21:01:14 -07:00
char.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
cryptohashes.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
date.c Create the infrastructure for planner support functions. 2019-02-09 18:08:48 -05:00
datetime.c Create the infrastructure for planner support functions. 2019-02-09 18:08:48 -05:00
datum.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
dbsize.c Replace heapam.h includes with {table, relation}.h where applicable. 2019-01-21 10:51:37 -08:00
domains.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
encode.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
enum.c Replace uses of heap_open et al with the corresponding table_* function. 2019-01-21 10:51:37 -08:00
expandeddatum.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
expandedrecord.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
float.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
format_type.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
formatting.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
genfile.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
geo_ops.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
geo_selfuncs.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
geo_spgist.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
inet_cidr_ntop.c Suppress -Wshift-negative-value warnings. 2018-06-17 16:15:11 -04:00
inet_net_pton.c Remove unnecessary parentheses in return statements 2017-09-05 14:52:55 -04:00
int.c Change function call information to be variable length. 2019-01-26 14:17:52 -08:00
int8.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
json.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
jsonb.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
jsonb_gin.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
jsonb_op.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
jsonb_util.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
jsonfuncs.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
levenshtein.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
like.c Add some const decorations 2019-02-08 10:13:24 +01:00
like_match.c Add some const decorations 2019-02-08 10:13:24 +01:00
lockfuncs.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
mac.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
mac8.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
misc.c Replace uses of heap_open et al with the corresponding table_* function. 2019-01-21 10:51:37 -08:00
name.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
network.c Suppress -Wshift-negative-value warnings. 2018-06-17 16:15:11 -04:00
network_gist.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
network_selfuncs.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
network_spgist.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
numeric.c Create the infrastructure for planner support functions. 2019-02-09 18:08:48 -05:00
numutils.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
oid.c Change function call information to be variable length. 2019-01-26 14:17:52 -08:00
oracle_compat.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
orderedsetaggs.c Refactor planner's header files. 2019-01-29 15:48:51 -05:00
partitionfuncs.c Add pg_partition_root to display top-most parent of a partition tree 2019-02-08 08:56:14 +09:00
pg_locale.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
pg_lsn.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
pg_upgrade_support.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
pgstatfuncs.c Add more columns to pg_stat_ssl 2019-02-01 00:33:47 +01:00
pseudotypes.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
quote.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
rangetypes.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
rangetypes_gist.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
rangetypes_selfuncs.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
rangetypes_spgist.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
rangetypes_typanalyze.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
regexp.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
regproc.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
ri_triggers.c Move remaining code from tqual.[ch] to heapam.h / heapam_visibility.c. 2019-01-21 17:07:10 -08:00
rowtypes.c Change function call information to be variable length. 2019-01-26 14:17:52 -08:00
ruleutils.c Create the infrastructure for planner support functions. 2019-02-09 18:08:48 -05:00
selfuncs.c Refactor the representation of indexable clauses in IndexPaths. 2019-02-09 17:30:43 -05:00
tid.c Remove superfluous tqual.h includes. 2019-01-21 12:15:02 -08:00
timestamp.c Create the infrastructure for planner support functions. 2019-02-09 18:08:48 -05:00
trigfuncs.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsginidx.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsgistidx.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsquery.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsquery_cleanup.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsquery_gist.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsquery_op.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsquery_rewrite.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsquery_util.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsrank.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsvector.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsvector_op.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
tsvector_parser.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
txid.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
uuid.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
varbit.c Create the infrastructure for planner support functions. 2019-02-09 18:08:48 -05:00
varchar.c Create the infrastructure for planner support functions. 2019-02-09 18:08:48 -05:00
varlena.c Fix possibly-uninitialized-variable warning from commit 9556aa01c. 2019-01-25 11:27:44 -05:00
version.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
windowfuncs.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
xid.c Update copyright for 2019 2019-01-02 12:44:25 -05:00
xml.c Defend against null error message reported by libxml2. 2019-02-08 13:30:42 -05:00