If a generated column uses the optional keywords GENERATE ALWAYS, try to avoid

putting those keywords in the typename of the column.
[forum:/forumpost/ff3ffe09251c105b|Forum post ff3ffe09251c105b]

FossilOrigin-Name: 3c954863f45271a3518acf51fd685a641878811fb5cfcbdbad85154aeccdc902

4 files changed, 42 insertions, 8 deletions

diff --git a/manifest b/manifest
index 4346c1292..f62c0433c 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Avoid\sclownfeet\sin\sthe\snames\scolumns\swhen\sthe\scolumn\snames\sare\squoted\nin\sthe\soriginal\sCREATE\sTABLE\sstatement.
-D 2021-07-30T18:39:59.675
+C If\sa\sgenerated\scolumn\suses\sthe\soptional\skeywords\sGENERATE\sALWAYS,\stry\sto\savoid\nputting\sthose\skeywords\sin\sthe\stypename\sof\sthe\scolumn.\n[forum:/forumpost/ff3ffe09251c105b|Forum\spost\sff3ffe09251c105b]
+D 2021-07-30T20:09:08.819
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -488,7 +488,7 @@ F src/btmutex.c 8acc2f464ee76324bf13310df5692a262b801808984c1b79defb2503bbafadb6
 F src/btree.c e204a9c8fb4fe5dbb910a863ba487f4af9b5c501254ec4ccbfcdd6b1f65b7fb4
 F src/btree.h 74d64b8f28cfa4a894d14d4ed64fa432cd697b98b61708d4351482ae15913e22
 F src/btreeInt.h 7bc15a24a02662409ebcd6aeaa1065522d14b7fda71573a2b0568b458f514ae0
-F src/build.c 8b0a6aa7dbce272c66f282f7aeec6e37ee1c7ded21e8f5a6e3864b0ab6ccdb29
+F src/build.c fedaf923ea61eed3496f5ef6fca6e3162344faf109e8d0228f61c7a24b92fe6a
 F src/callback.c d0b853dd413255d2e337b34545e54d888ea02f20da5ad0e63585b389624c4a6c
 F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
 F src/ctime.c 8159d5f706551861c18ec6c8f6bdf105e15ea00367f05d9ab65d31a1077facc1
@@ -1062,7 +1062,7 @@ F test/fuzzer1.test 3d4c4b7e547aba5e5511a2991e3e3d07166cfbb8
 F test/fuzzer2.test a85ef814ce071293bce1ad8dffa217cbbaad4c14
 F test/fuzzerfault.test f64c4aef4c9e9edf1d6dc0d3f1e65dcc81e67c996403c88d14f09b74807a42bc
 F test/gcfault.test dd28c228a38976d6336a3fc42d7e5f1ad060cb8c
-F test/gencol1.test b05e6c5edb9b10d48efb634ed07342441bddc89d225043e17095c36e567521a0
+F test/gencol1.test 26c55577b15f78069bacf8afee994b74b9d69aa690577db9cff926b10e4e6be2
 F test/genesis.tcl 1e2e2e8e5cc4058549a154ff1892fe5c9de19f98
 F test/having.test a89236dd8d55aa50c4805f82ac9daf64d477a44d712d8209c118978d0ca21ec9
 F test/hexlit.test 4a6a5f46e3c65c4bf1fa06f5dd5a9507a5627751
@@ -1920,7 +1920,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 2941ded0acbdcf914567bf7451cfd9b770269545c20d3fa7107c40492689afad
-R 34387fa0540aea58caf42bd33cbb64b5
+P 980f7292afd45a8e73272e2139b55b99ab86167febec9fd0bf0356e8167b2ee9
+R 5e0d17f3eda249159c66a4dab795bade
 U drh
-Z a43263f36582e13af1a30f741180b3be
+Z b92983df8210770e5aba5b5d6965da26
diff --git a/manifest.uuid b/manifest.uuid
index 50ed690d5..b98c86df8 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-980f7292afd45a8e73272e2139b55b99ab86167febec9fd0bf0356e8167b2ee9
\ No newline at end of file
+3c954863f45271a3518acf51fd685a641878811fb5cfcbdbad85154aeccdc902
\ No newline at end of file
diff --git a/src/build.c b/src/build.c
index 5d2936f5b..43112a4cd 100644
--- a/src/build.c
+++ b/src/build.c
@@ -1389,6 +1389,24 @@ void sqlite3AddColumn(Parse *pParse, Token sName, Token sType){
     return;
   }
   if( !IN_RENAME_OBJECT ) sqlite3DequoteToken(&sName);
+
+  /* Because keywords GENERATE ALWAYS can be converted into indentifiers
+  ** by the parser, we can sometimes end up with a typename that ends
+  ** with "generated always".  Check for this case and omit the surplus
+  ** text. */
+  if( sType.n>=16
+   && sqlite3_strnicmp(sType.z+(sType.n-6),"always",6)==0
+  ){
+    sType.n -= 6;
+    while( ALWAYS(sType.n>0) && sqlite3Isspace(sType.z[sType.n-1]) ) sType.n--;
+    if( sType.n>=9
+     && sqlite3_strnicmp(sType.z+(sType.n-9),"generated",9)==0
+    ){
+      sType.n -= 9;
+      while( sType.n>0 && sqlite3Isspace(sType.z[sType.n-1]) ) sType.n--;
+    }
+  }
+
   z = sqlite3DbMallocRaw(db, sName.n + sType.n + 2);
   if( z==0 ) return;
   if( IN_RENAME_OBJECT ) sqlite3RenameTokenMap(pParse, (void*)z, &sName);
diff --git a/test/gencol1.test b/test/gencol1.test
index 43f48dff7..c0bb52361 100644
--- a/test/gencol1.test
+++ b/test/gencol1.test
@@ -585,5 +585,21 @@ do_execsql_test gencol1-20.2 {
   SELECT * FROM tab;
 } {2001-01-01 0 0 5 {}}
 
+# 2021-07-30 forum https://sqlite.org/forum/forumpost/ff3ffe09251c105b?t=h
+#
+reset_db
+do_execsql_test gencol1-21.1 {
+  CREATE TABLE t1(
+    a integer primary key,
+    b int generated always as (a+5),
+    c text    GENERATED   ALWAYS as (printf('%08x',a)),
+    d Generated
+      Always
+      AS ('xyzzy'),
+    e int                         Always default(5)
+  );
+  INSERT INTO t1(a) VALUES(5);
+  SELECT name, type FROM pragma_table_xinfo('t1');
+} {a integer b int c text d {} e {int}}
 
 finish_test