Revert SQL/JSON features

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

1 files changed, 0 insertions, 37 deletions

diff --git a/src/include/utils/jsonpath.h b/src/include/utils/jsonpath.h
index 8e79b8dc9f0..cd0b5d5b61c 100644
--- a/src/include/utils/jsonpath.h
+++ b/src/include/utils/jsonpath.h
@@ -15,11 +15,8 @@
 #define JSONPATH_H
 
 #include "fmgr.h"
-#include "executor/tablefunc.h"
 #include "nodes/pg_list.h"
-#include "nodes/primnodes.h"
 #include "utils/jsonb.h"
-#include "utils/jsonfuncs.h"
 
 typedef struct
 {
@@ -177,7 +174,6 @@ extern bool jspGetBool(JsonPathItem *v);
 extern char *jspGetString(JsonPathItem *v, int32 *len);
 extern bool jspGetArraySubscript(JsonPathItem *v, JsonPathItem *from,
 								 JsonPathItem *to, int i);
-extern bool jspIsMutable(JsonPath *path, List *varnames, List *varexprs);
 
 extern const char *jspOperationName(JsonPathItemType type);
 
@@ -252,37 +248,4 @@ extern JsonPathParseResult *parsejsonpath(const char *str, int len);
 
 extern int	jspConvertRegexFlags(uint32 xflags);
 
-/*
- * Evaluation of jsonpath
- */
-
-/* External variable passed into jsonpath. */
-typedef struct JsonPathVariableEvalContext
-{
-	char	   *name;
-	Oid			typid;
-	int32		typmod;
-	struct ExprContext *econtext;
-	struct ExprState *estate;
-	MemoryContext mcxt;			/* memory context for cached value */
-	Datum		value;
-	bool		isnull;
-	bool		evaluated;
-} JsonPathVariableEvalContext;
-
-/* SQL/JSON item */
-extern void JsonItemFromDatum(Datum val, Oid typid, int32 typmod,
-							  JsonbValue *res);
-
-extern bool JsonPathExists(Datum jb, JsonPath *path, List *vars, bool *error);
-extern Datum JsonPathQuery(Datum jb, JsonPath *jp, JsonWrapper wrapper,
-						   bool *empty, bool *error, List *vars);
-extern JsonbValue *JsonPathValue(Datum jb, JsonPath *jp, bool *empty,
-								 bool *error, List *vars);
-
-extern int	EvalJsonPathVar(void *vars, char *varName, int varNameLen,
-							JsonbValue *val, JsonbValue *baseObject);
-
-extern PGDLLIMPORT const TableFuncRoutine JsonbTableRoutine;
-
 #endif