Recover a some of the performance lost by window function alias fix two

check-ins back.

FossilOrigin-Name: 965cbcea117835d2c6d2ec58c8025b227f491c35805e282cb31228436bc6bec1

manifest

@@ -1,5 +1,5 @@
-C Add\snew\stest\scases\sto\stest/fuzzdata8.db
-D 2019-03-28T20:50:41.491
+C Recover\sa\ssome\sof\sthe\sperformance\slost\sby\swindow\sfunction\salias\sfix\stwo\ncheck-ins\sback.
+D 2019-03-29T01:15:11.116
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -514,14 +514,14 @@ F src/pragma.h a776bb9c915207e9d1117b5754743ddf1bf6a39cc092a4a44e74e6cb5fab1177
 F src/prepare.c 78027c6231fbb19ca186a5f5f0c0a1375d9c2cec0655273f9bd90d9ff74a34b3
 F src/printf.c 93a3d539019264683a444bc043c875e9a6cca43fe935ae7bf6cfff0af3bba118
 F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
-F src/resolve.c f201b8f9fbcfecb9a3af7cab04ceec30649ac33689bbeb4f9dcaa13d1ead943f
+F src/resolve.c 567888ee3faec14dae06519b4306201771058364a37560186a3e0e755ebc4cb8
 F src/rowset.c d977b011993aaea002cab3e0bb2ce50cf346000dff94e944d547b989f4b1fe93
 F src/select.c 9263f5c30dd44c7ac2eb29f40a7ec64322a96885b71c00de6bc30b756c2e1c49
 F src/shell.c.in c1986496062f9dba4ed5b70db06b5e0f32e1954cdcfab0b30372c6c186796810
 F src/sqlite.h.in f765fce74038607388d3a96cd7fad892f363bdcde24911565edf610ecf69534c
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h 960f1b86c3610fa23cb6a267572a97dcf286e77aa0dd3b9b23292ffaa1ea8683
-F src/sqliteInt.h 15e1fab2ca4c522140a56f783376be059fdcc5791e6874d118c8d92c70101742
+F src/sqliteInt.h 59b625f88bf96cad4cd1a6a6ded615c161f518fb56da3e49f2ff70429e49095f
 F src/sqliteLimit.h 1513bfb7b20378aa0041e7022d04acb73525de35b80b252f1b83fedb4de6a76b
 F src/status.c 46e7aec11f79dad50965a5ca5fa9de009f7d6bde08be2156f1538a0a296d4d0e
 F src/table.c b46ad567748f24a326d9de40e5b9659f96ffff34
@@ -1813,7 +1813,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 1e16d3e8fc60d39ca3899759ff15d355fdd7d3e23b325d8d2b0f954e11ce8dce
-R 3e08304d2df7852acd56ae3e4fc85688
+P f908cd40b275a5753d5167ebb25871300381687adcb3a7fcb1f14b57a20ee3d0
+R d09d343d4a65e6083144623bc2793fd6
 U drh
-Z cc1b565b608e8e6a98e2056361ad476a
+Z 9d5464d6e79c7b4f0d1819c4eb226890

manifest.uuid

@@ -1 +1 @@
-f908cd40b275a5753d5167ebb25871300381687adcb3a7fcb1f14b57a20ee3d0
+965cbcea117835d2c6d2ec58c8025b227f491c35805e282cb31228436bc6bec1

src/resolve.c

@@ -1673,12 +1673,11 @@ int sqlite3ResolveExprNames(
 #if SQLITE_MAX_EXPR_DEPTH>0
   w.pParse->nHeight -= pExpr->nHeight;
 #endif
-  if( pNC->ncFlags & NC_HasAgg ){
-    ExprSetProperty(pExpr, EP_Agg);
-  }
-  if( pNC->ncFlags & NC_HasWin ){
-    ExprSetProperty(pExpr, EP_Win);
-  }
+  assert( EP_Agg==NC_HasAgg );
+  assert( EP_Win==NC_HasWin );
+  testcase( pNC->ncFlags & NC_HasAgg );
+  testcase( pNC->ncFlags & NC_HasWin );
+  ExprSetProperty(pExpr, pNC->ncFlags & (NC_HasAgg|NC_HasWin) );
   pNC->ncFlags |= savedHasAgg;
   return pNC->nErr>0 || w.pParse->nErr>0;
 }

src/sqliteInt.h

@@ -2496,12 +2496,16 @@ struct Expr {
 
 /*
 ** The following are the meanings of bits in the Expr.flags field.
+** Value restrictions:
+**
+**          EP_Agg == NC_HasAgg == SF_HasAgg
+**          EP_Win == NC_HasWin
 */
 #define EP_FromJoin  0x000001 /* Originates in ON/USING clause of outer join */
-#define EP_Agg       0x000002 /* Contains one or more aggregate functions */
+#define EP_Distinct  0x000002 /* Aggregate function with DISTINCT keyword */
 #define EP_HasFunc   0x000004 /* Contains one or more functions of any kind */
 #define EP_FixedCol  0x000008 /* TK_Column with a known fixed value */
-#define EP_Distinct  0x000010 /* Aggregate function with DISTINCT keyword */
+#define EP_Agg       0x000010 /* Contains one or more aggregate functions */
 #define EP_VarSelect 0x000020 /* pSelect is correlated, not constant */
 #define EP_DblQuoted 0x000040 /* token.z was originally in "..." */
 #define EP_InfixFunc 0x000080 /* True for an infix function: LIKE, GLOB, etc */
@@ -2512,7 +2516,7 @@ struct Expr {
 #define EP_Skip      0x001000 /* COLLATE, AS, or UNLIKELY */
 #define EP_Reduced   0x002000 /* Expr struct EXPR_REDUCEDSIZE bytes only */
 #define EP_TokenOnly 0x004000 /* Expr struct EXPR_TOKENONLYSIZE bytes only */
-#define EP_Static    0x008000 /* Held in memory not obtained from malloc() */
+#define EP_Win       0x008000 /* Contains window functions */
 #define EP_MemToken  0x010000 /* Need to sqlite3DbFree() Expr.zToken */
 #define EP_NoReduce  0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
 #define EP_Unlikely  0x040000 /* unlikely() or likelihood() function */
@@ -2524,7 +2528,7 @@ struct Expr {
 #define EP_WinFunc  0x1000000 /* TK_FUNCTION with Expr.y.pWin set */
 #define EP_Subrtn   0x2000000 /* Uses Expr.y.sub. TK_IN, _SELECT, or _EXISTS */
 #define EP_Quoted   0x4000000 /* TK_ID was originally quoted */
-#define EP_Win      0x8000000 /* Contains window functions */
+#define EP_Static   0x8000000 /* Held in memory not obtained from malloc() */
 
 /*
 ** The EP_Propagate mask is a set of properties that automatically propagate
@@ -2764,8 +2768,9 @@ struct NameContext {
 ** Allowed values for the NameContext, ncFlags field.
 **
 ** Value constraints (all checked via assert()):
-**    NC_HasAgg    == SF_HasAgg
+**    NC_HasAgg    == SF_HasAgg    == EP_Agg
 **    NC_MinMaxAgg == SF_MinMaxAgg == SQLITE_FUNC_MINMAX
+**    NC_HasWin    == EP_Win
 **
 */
 #define NC_AllowAgg  0x0001  /* Aggregate functions are allowed here */