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Revert SQL/JSON features

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The reverts the following and makes some associated cleanups:

    commit f79b803dc: Common SQL/JSON clauses
    commit f4fb45d15: SQL/JSON constructors
    commit 5f0adec25: Make STRING an unreserved_keyword.
    commit 33a377608: IS JSON predicate
    commit 1a36bc9db: SQL/JSON query functions
    commit 606948b05: SQL JSON functions
    commit 49082c2cc: RETURNING clause for JSON() and JSON_SCALAR()
    commit 4e34747c8: JSON_TABLE
    commit fadb48b00: PLAN clauses for JSON_TABLE
    commit 2ef6f11b0: Reduce running time of jsonb_sqljson test
    commit 14d3f24fa: Further improve jsonb_sqljson parallel test
    commit a6baa4bad: Documentation for SQL/JSON features
    commit b46bcf7a4: Improve readability of SQL/JSON documentation.
    commit 112fdb352: Fix finalization for json_objectagg and friends
    commit fcdb35c32: Fix transformJsonBehavior
    commit 4cd8717af: Improve a couple of sql/json error messages
    commit f7a605f63: Small cleanups in SQL/JSON code
    commit 9c3d25e17: Fix JSON_OBJECTAGG uniquefying bug
    commit a79153b7a: Claim SQL standard compliance for SQL/JSON features
    commit a1e7616d6: Rework SQL/JSON documentation
    commit 8d9f9634e: Fix errors in copyfuncs/equalfuncs support for JSON node types.
    commit 3c633f32b: Only allow returning string types or bytea from json_serialize
    commit 67b26703b: expression eval: Fix EEOP_JSON_CONSTRUCTOR and EEOP_JSONEXPR size.

The release notes are also adjusted.

Backpatch to release 15.

Discussion: https://postgr.es/m/40d2c882-bcac-19a9-754d-4299e1d87ac7@postgresql.org
This commit is contained in:
Andrew Dunstan
2022-09-01 17:07:14 -04:00
parent 90247e742f
commit 2f2b18bd3f
60 changed files with 348 additions and 14893 deletions
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12
src/backend/parser/parse_clause.c
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@ -690,9 +690,7 @@ transformRangeTableFunc(ParseState *pstate, RangeTableFunc *rtf)
char **names;
int colno;
/* Currently only XMLTABLE and JSON_TABLE are supported */
tf->functype = TFT_XMLTABLE;
/* Currently only XMLTABLE is supported */
constructName = "XMLTABLE";
docType = XMLOID;
@ -1099,17 +1097,13 @@ transformFromClauseItem(ParseState *pstate, Node *n,
rtr->rtindex = nsitem->p_rtindex;
return (Node *) rtr;
}
else if (IsA(n, RangeTableFunc) || IsA(n, JsonTable))
else if (IsA(n, RangeTableFunc))
{
/* table function is like a plain relation */
RangeTblRef *rtr;
ParseNamespaceItem *nsitem;
if (IsA(n, RangeTableFunc))
nsitem = transformRangeTableFunc(pstate, (RangeTableFunc *) n);
else
nsitem = transformJsonTable(pstate, (JsonTable *) n);
nsitem = transformRangeTableFunc(pstate, (RangeTableFunc *) n);
*top_nsitem = nsitem;
*namespace = list_make1(nsitem);
rtr = makeNode(RangeTblRef);