Add PostgreSQL 19 compatibility

Author: sibowu-aws

include/clientauth.h

@@ -18,4 +18,4 @@
  * contains the changes needed by uni_api to load the functionality for
  * clientauth.
  */
-void		clientauth_init();
+void		clientauth_init(void);

include/compatibility.h

@@ -382,7 +382,11 @@ CastCreate(Oid sourcetypeid, Oid targettypeid, Oid funcid, char castcontext,
 	CastCreate(sourcetypeid, targettypeid, funcid, castcontext, castmethod, behavior)
 #endif
 
-#if PG_VERSION_NUM >= 140000
+#if PG_VERSION_NUM >= 190000
+#define FUNCNAME_GET_CANDIDATES(names, nargs, argnames, expand_variadic, expand_defaults, missing_ok) \
+	({ int _fgc_flags = 0; \
+	   FuncnameGetCandidates(names, nargs, argnames, expand_variadic, expand_defaults, false /* include_out_arguments */, missing_ok, &_fgc_flags); })
+#elif PG_VERSION_NUM >= 140000
 #define FUNCNAME_GET_CANDIDATES(names, nargs, argnames, expand_variadic, expand_defaults, missing_ok) \
 	FuncnameGetCandidates(names, nargs, argnames, expand_variadic, expand_defaults, false /* include_out_arguments */, missing_ok)
 #else
@@ -635,4 +639,22 @@ CastCreate(Oid sourcetypeid, Oid targettypeid, Oid funcid, char castcontext,
     ExecutorRun((queryDesc), (direction), (count), (execute_once))
 #endif
 
+/*
+ * PostgreSQL version 19
+ *
+ * pgstat.h no longer transitively includes utils/wait_event.h
+ * log_min_messages changed from int to int[]
+ * get_database_name moved to utils/lsyscache.h
+ * get_database_oid moved to catalog/pg_database.h
+ * CreateSchemaCommand signature changed to (ParseState*, CreateSchemaStmt*, int, int)
+ */
+#if (PG_VERSION_NUM >= 190000)
+#include "utils/wait_event.h"
+#include "catalog/pg_database.h"
+#include "utils/lsyscache.h"
+#define LOG_MIN_MESSAGES_VALUE log_min_messages[0]
+#else
+#define LOG_MIN_MESSAGES_VALUE log_min_messages
+#endif
+
 #endif							/* SET_USER_COMPAT_H */

include/passcheck.h

@@ -18,4 +18,4 @@
  * contains the changes needed by uni_api to load the functionality for
  * passcheck.
  */
-void		passcheck_init();
+void		passcheck_init(void);

src/clientauth.c

@@ -831,7 +831,7 @@ clientauth_sighup(SIGNAL_ARGS)
  * 3. pgtle.enable_clientauth is ON and no functions are registered with the clientauth feature
  */
 static bool
-can_allow_without_executing()
+can_allow_without_executing(void)
 {
 	List	   *proc_names;
 	Oid			extOid;
@@ -865,7 +865,7 @@ can_allow_without_executing()
  * 2. pgtle.enable_clientauth is REQUIRE and no functions are registered with the clientauth feature
  */
 static bool
-can_reject_without_executing()
+can_reject_without_executing(void)
 {
 	List	   *proc_names;
 	Oid			extOid;

src/tleextension.c

@@ -73,6 +73,9 @@
 #include "nodes/plannodes.h"
 #include "parser/parse_func.h"
 #include "parser/parse_type.h"
+#if PG_VERSION_NUM >= 190000
+#include "parser/parse_node.h"
+#endif
 #include "storage/fd.h"
 #include "tcop/tcopprot.h"
 #include "tcop/utility.h"
@@ -86,6 +89,7 @@
 #include "utils/snapmgr.h"
 #include "utils/syscache.h"
 #include "utils/varlena.h"
+#include "utils/tuplestore.h"
 
 #include "constants.h"
 #include "tleextension.h"
@@ -1332,7 +1336,7 @@ execute_extension_script(Oid extensionOid, ExtensionControlFile *control,
 									 PGC_USERSET, PGC_S_SESSION,
 									 GetUserId(),
 									 GUC_ACTION_SAVE, true, 0, false);
-	if (log_min_messages < WARNING)
+	if (LOG_MIN_MESSAGES_VALUE < WARNING)
 		(void) set_config_option_ext("log_min_messages", "warning",
 									 PGC_SUSET, PGC_S_SESSION,
 									 BOOTSTRAP_SUPERUSERID,
@@ -2067,14 +2071,25 @@ CreateExtensionInternal(char *extensionName,
 
 		if (!OidIsValid(schemaOid))
 		{
+#if PG_VERSION_NUM >= 190000
+			ParseState *pstate = make_parsestate(NULL);
+#endif
 			CreateSchemaStmt *csstmt = makeNode(CreateSchemaStmt);
 
+#if PG_VERSION_NUM >= 190000
+			pstate->p_sourcetext = "(generated CREATE SCHEMA command)";
+#endif
+
 			csstmt->schemaname = schemaName;
 			csstmt->authrole = NULL;	/* will be created by current user */
 			csstmt->schemaElts = NIL;
 			csstmt->if_not_exists = false;
+#if PG_VERSION_NUM >= 190000
+			CreateSchemaCommand(pstate, csstmt, -1, -1);
+#else
 			CreateSchemaCommand(csstmt, "(generated CREATE SCHEMA command)",
 								-1, -1);
+#endif
 
 			/*
 			 * CreateSchemaCommand includes CommandCounterIncrement, so new