From 77ac85ee79ce54c2df20d6d096da02c967f911f1 Mon Sep 17 00:00:00 2001
From: tdrz <tudor.zaharia@gmail.com>
Date: Thu, 8 May 2025 15:16:50 +0200
Subject: [PATCH 1/3] speed

---
 pglite-REL_17_4_WASM/interactive_one.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/pglite-REL_17_4_WASM/interactive_one.c b/pglite-REL_17_4_WASM/interactive_one.c
index 8261c17c498c2..64f1229e1dbf8 100644
--- a/pglite-REL_17_4_WASM/interactive_one.c
+++ b/pglite-REL_17_4_WASM/interactive_one.c
@@ -528,10 +528,6 @@ PDEBUG("# 500: NO DATA:" PGS_IN );
     // CMA wire mode. -> packetlen was set to cma_rsize
     resetStringInfo(inBuf);
 
-    for (int i=0; i<packetlen; i++) {
-        appendStringInfoChar(inBuf, IO[i]);
-    }
-
     if (packetlen<2) {
         puts("# 512: WARNING: empty packet");
         //cma_rsize= 0;

From a7f2418dc210f0ff7df505d218a82c6a2755cb1c Mon Sep 17 00:00:00 2001
From: "Paul m. p. Peny" <mail.peny@free.fr>
Date: Mon, 12 May 2025 09:59:52 +0200
Subject: [PATCH 2/3] only copy fake stdin when in repl mode

---
 pglite-REL_17_4_WASM/interactive_one.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/pglite-REL_17_4_WASM/interactive_one.c b/pglite-REL_17_4_WASM/interactive_one.c
index 64f1229e1dbf8..3c0815fcd1c00 100644
--- a/pglite-REL_17_4_WASM/interactive_one.c
+++ b/pglite-REL_17_4_WASM/interactive_one.c
@@ -524,10 +524,13 @@ PDEBUG("# 500: NO DATA:" PGS_IN );
     printf("\n# 500: fd=%d is_embed=%d is_repl=%d is_wire=%d fd %s,len=%d cma=%d peek=%d [%s]\n", MyProcPort->sock, is_embed, is_repl, is_wire, PGS_OLOCK, packetlen,cma_rsize, peek, IO);
 #endif
 
-    // buffer query TODO: direct access ?
-    // CMA wire mode. -> packetlen was set to cma_rsize
-    resetStringInfo(inBuf);
-
+    if (is_repl) {
+	resetStringInfo(inBuf);
+	for (int i=0; i<packetlen; i++) {
+	    appendStringInfoChar(inBuf, IO[i]);
+	}
+    }
+	
     if (packetlen<2) {
         puts("# 512: WARNING: empty packet");
         //cma_rsize= 0;

From 8d7ae763a3ba8b8073fabf6a12baaa8d6987555f Mon Sep 17 00:00:00 2001
From: "Paul m. p. Peny" <mail.peny@free.fr>
Date: Mon, 12 May 2025 11:38:01 +0200
Subject: [PATCH 3/3] Update interactive_one.c

---
 pglite-REL_17_4_WASM/interactive_one.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/pglite-REL_17_4_WASM/interactive_one.c b/pglite-REL_17_4_WASM/interactive_one.c
index 3c0815fcd1c00..04aaee51228a3 100644
--- a/pglite-REL_17_4_WASM/interactive_one.c
+++ b/pglite-REL_17_4_WASM/interactive_one.c
@@ -524,11 +524,12 @@ PDEBUG("# 500: NO DATA:" PGS_IN );
     printf("\n# 500: fd=%d is_embed=%d is_repl=%d is_wire=%d fd %s,len=%d cma=%d peek=%d [%s]\n", MyProcPort->sock, is_embed, is_repl, is_wire, PGS_OLOCK, packetlen,cma_rsize, peek, IO);
 #endif
 
+    resetStringInfo(inBuf);
+    // when cma buffer is used to fake stdin, data is not read by socket/wire backend.
     if (is_repl) {
-	resetStringInfo(inBuf);
-	for (int i=0; i<packetlen; i++) {
-	    appendStringInfoChar(inBuf, IO[i]);
-	}
+        for (int i=0; i<packetlen; i++) {
+            appendStringInfoChar(inBuf, IO[i]);
+        }
     }
 	
     if (packetlen<2) {