From c8af879e5f501595d5bc59e15621ce25ab76d566 Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Fri, 1 Jan 2021 22:06:17 +0000
Subject: [PATCH] Avoid allocating space to hold the prepared statements for
 CREATE statements when parsing the schema of an existing database, since
 those prepared statements are never used..  This helps to make startup
 faster,

FossilOrigin-Name: d01e9f2d00dc439c529cd8885a219fcddbaad73b9f471b020e2a0c18e2add69b
---
 manifest      | 12 ++++++------
 manifest.uuid |  2 +-
 src/build.c   |  4 ++++
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/manifest b/manifest
index a6d72ee472..62f5f649c1 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Faster\sand\ssmaller\stest\sto\sensure\sthat\sthe\ssqlite_schema.sql\sfield\sis\salways\na\sCREATE\sstatement\sof\ssome\skind.
-D 2021-01-01T21:02:37.996
+C Avoid\sallocating\sspace\sto\shold\sthe\sprepared\sstatements\sfor\sCREATE\sstatements\nwhen\sparsing\sthe\sschema\sof\san\sexisting\sdatabase,\ssince\sthose\sprepared\nstatements\sare\snever\sused..\s\sThis\shelps\sto\smake\sstartup\sfaster,
+D 2021-01-01T22:06:17.152
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -484,7 +484,7 @@ F src/btmutex.c 8acc2f464ee76324bf13310df5692a262b801808984c1b79defb2503bbafadb6
 F src/btree.c 0f9cb686871ae668817673f0823b55d1bcadbc86ea28bd22c590b064a8322d5a
 F src/btree.h 285f8377aa1353185a32bf455faafa9ff9a0d40d074d60509534d14990c7829e
 F src/btreeInt.h 7614cae30f95b6aed0c7cac7718276a55cfe2c77058cbfd8bef5b75329757331
-F src/build.c 7a9983015d707482329820eb0ab6bc014554cbd89f8f0312e88ee47ca924257d
+F src/build.c d4c06261b0e532523ede58dc511381a7a9c155132e4b65a6bb2ff76fe657793a
 F src/callback.c d0b853dd413255d2e337b34545e54d888ea02f20da5ad0e63585b389624c4a6c
 F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
 F src/ctime.c 2a322b9a3d75771fb4d99e0702851f4f68dda982507a0f798eefb0712969a410
@@ -1895,7 +1895,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 6f25f2529f1495a26129d7d407979906e4962b2de351f901d41cb037d05ba780
-R b56645f386266a2944ab2c45a4a49580
+P 76de2bb04b1c02a6c0300cd61d9b3d2477d845aa0d1cdb9dbe4f354b9fedd923
+R df14a0f8e3c8c0f24b4bc5fa275286c3
 U drh
-Z 5ad0d6addcb4bd606a3544d738c2cf50
+Z f56f3715fca7ebd8ed5abb62c2ed9411
diff --git a/manifest.uuid b/manifest.uuid
index 1f0e61ce42..be0c633268 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-76de2bb04b1c02a6c0300cd61d9b3d2477d845aa0d1cdb9dbe4f354b9fedd923
\ No newline at end of file
+d01e9f2d00dc439c529cd8885a219fcddbaad73b9f471b020e2a0c18e2add69b
\ No newline at end of file
diff --git a/src/build.c b/src/build.c
index c9877951c6..50289c6a1d 100644
--- a/src/build.c
+++ b/src/build.c
@@ -143,6 +143,10 @@ void sqlite3FinishCoding(Parse *pParse){
   /* Begin by generating some termination code at the end of the
   ** vdbe program
   */
+  if( pParse->pVdbe==0 && db->init.busy ){
+    pParse->rc = SQLITE_DONE;
+    return;
+  }
   v = sqlite3GetVdbe(pParse);
   assert( !pParse->isMultiWrite 
        || sqlite3VdbeAssertMayAbort(v, pParse->mayAbort));