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Revert temporal primary keys and foreign keys

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This feature set did not handle empty ranges correctly, and it's now
too late for PostgreSQL 17 to fix it.

The following commits are reverted:

    6db4598fcb Add stratnum GiST support function
    46a0cd4cef Add temporal PRIMARY KEY and UNIQUE constraints
    86232a49a4 Fix comment on gist_stratnum_btree
    030e10ff1a Rename pg_constraint.conwithoutoverlaps to conperiod
    a88c800deb Use daterange and YMD in without_overlaps tests instead of tsrange.
    5577a71fb0 Use half-open interval notation in without_overlaps tests
    34768ee361 Add temporal FOREIGN KEY contraints
    482e108cd3 Add test for REPLICA IDENTITY with a temporal key
    c3db1f30cb doc:  clarify PERIOD and WITHOUT OVERLAPS in CREATE TABLE
    144c2ce0cc Fix ON CONFLICT DO NOTHING/UPDATE for temporal indexes

Discussion: https://www.postgresql.org/message-id/d0b64a7a-dfe4-4b84-a906-c7dedfa40a3e@eisentraut.org
This commit is contained in:
Peter Eisentraut
2024-05-16 08:15:35 +02:00
parent f6ebb41831
commit 8aee330af5
47 changed files with 149 additions and 4475 deletions
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43
src/backend/access/gist/gistutil.c
View File

@@ -21,7 +21,6 @@
#include "common/pg_prng.h"
#include "storage/indexfsm.h"
#include "utils/float.h"
#include "utils/fmgrprotos.h"
#include "utils/lsyscache.h"
#include "utils/rel.h"
#include "utils/snapmgr.h"
@@ -1056,45 +1055,3 @@ gistGetFakeLSN(Relation rel)
return GetFakeLSNForUnloggedRel();
}
}
/*
* Returns the same number that was received.
*
* This is for GiST opclasses that use the RT*StrategyNumber constants.
*/
Datum
gist_stratnum_identity(PG_FUNCTION_ARGS)
{
StrategyNumber strat = PG_GETARG_UINT16(0);
PG_RETURN_UINT16(strat);
}
/*
* Returns the opclass's private stratnum used for the given strategy.
*
* Calls the opclass's GIST_STRATNUM_PROC support function, if any,
* and returns the result.
* Returns InvalidStrategy if the function is not defined.
*/
StrategyNumber
GistTranslateStratnum(Oid opclass, StrategyNumber strat)
{
Oid opfamily;
Oid opcintype;
Oid funcid;
Datum result;
/* Look up the opclass family and input datatype. */
if (!get_opclass_opfamily_and_input_type(opclass, &opfamily, &opcintype))
return InvalidStrategy;
/* Check whether the function is provided. */
funcid = get_opfamily_proc(opfamily, opcintype, opcintype, GIST_STRATNUM_PROC);
if (!OidIsValid(funcid))
return InvalidStrategy;
/* Ask the translation function */
result = OidFunctionCall1Coll(funcid, InvalidOid, UInt16GetDatum(strat));
return DatumGetUInt16(result);
}

8
src/backend/access/gist/gistvalidate.c
View File

@@ -146,10 +146,6 @@ gistvalidate(Oid opclassoid)
ok = check_amproc_signature(procform->amproc, VOIDOID, true,
1, 1, INTERNALOID);
break;
case GIST_STRATNUM_PROC:
ok = check_amproc_signature(procform->amproc, INT2OID, true,
1, 1, INT2OID);
break;
default:
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
@@ -270,8 +266,7 @@ gistvalidate(Oid opclassoid)
continue; /* got it */
if (i == GIST_DISTANCE_PROC || i == GIST_FETCH_PROC ||
i == GIST_COMPRESS_PROC || i == GIST_DECOMPRESS_PROC ||
i == GIST_OPTIONS_PROC || i == GIST_SORTSUPPORT_PROC ||
i == GIST_STRATNUM_PROC)
i == GIST_OPTIONS_PROC || i == GIST_SORTSUPPORT_PROC)
continue; /* optional methods */
ereport(INFO,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
@@ -343,7 +338,6 @@ gistadjustmembers(Oid opfamilyoid,
case GIST_FETCH_PROC:
case GIST_OPTIONS_PROC:
case GIST_SORTSUPPORT_PROC:
case GIST_STRATNUM_PROC:
/* Optional, so force it to be a soft family dependency */
op->ref_is_hard = false;
op->ref_is_family = true;