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Overview
| Comment: | Remove incorrect ALWAYS() macros from the window function logic. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
94ac51cc4e7fdf484214e1936fc96104 |
| User & Date: | drh 2018-07-10 23:31:17 |
Context
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2018-07-11
| ||
| 03:27 | Adjustments to VdbeCoverage macros to deal with byte-code branches that can never be taken in some directions. (check-in: b170c009 user: drh tags: trunk) | |
|
2018-07-10
| ||
| 23:31 | Remove incorrect ALWAYS() macros from the window function logic. (check-in: 94ac51cc user: drh tags: trunk) | |
| 22:24 | Add VdbeModuleComment()s on the three main code generators for window functions. (check-in: f7c239e9 user: drh tags: trunk) | |
Changes
Changes to src/window.c.
146 146 */ 147 147 static void row_numberStepFunc( 148 148 sqlite3_context *pCtx, 149 149 int nArg, 150 150 sqlite3_value **apArg 151 151 ){ 152 152 i64 *p = (i64*)sqlite3_aggregate_context(pCtx, sizeof(*p)); 153 - /* row_numberValueFunc() is always called first, so the aggregate context 154 - ** is guaranteed to already exist. */ 155 - if( ALWAYS(p) ) (*p)++; 153 + if( p ) (*p)++; 156 154 UNUSED_PARAMETER(nArg); 157 155 UNUSED_PARAMETER(apArg); 158 156 } 159 157 static void row_numberValueFunc(sqlite3_context *pCtx){ 160 158 i64 *p = (i64*)sqlite3_aggregate_context(pCtx, sizeof(*p)); 161 159 sqlite3_result_int64(pCtx, (p ? *p : 0)); 162 160 } ................................................................................ 180 178 static void dense_rankStepFunc( 181 179 sqlite3_context *pCtx, 182 180 int nArg, 183 181 sqlite3_value **apArg 184 182 ){ 185 183 struct CallCount *p; 186 184 p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p)); 187 - /* p is not NULL because dense_rankValueFunc() will have been called first */ 188 - if( ALWAYS(p) ) p->nStep = 1; 185 + if( p ) p->nStep = 1; 189 186 UNUSED_PARAMETER(nArg); 190 187 UNUSED_PARAMETER(apArg); 191 188 } 192 189 static void dense_rankValueFunc(sqlite3_context *pCtx){ 193 190 struct CallCount *p; 194 191 p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p)); 195 192 if( p ){ ................................................................................ 210 207 static void rankStepFunc( 211 208 sqlite3_context *pCtx, 212 209 int nArg, 213 210 sqlite3_value **apArg 214 211 ){ 215 212 struct CallCount *p; 216 213 p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p)); 217 - /* p is not NULL because rankValueFunc() will have been called first */ 218 - if( ALWAYS(p) ){ 214 + if( p ){ 219 215 p->nStep++; 220 216 if( p->nValue==0 ){ 221 217 p->nValue = p->nStep; 222 218 } 223 219 } 224 220 UNUSED_PARAMETER(nArg); 225 221 UNUSED_PARAMETER(apArg); ................................................................................ 244 240 int nArg, 245 241 sqlite3_value **apArg 246 242 ){ 247 243 struct CallCount *p; 248 244 UNUSED_PARAMETER(nArg); assert( nArg==1 ); 249 245 250 246 p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p)); 251 - /* p is not NULL because percent_rankValueFunc() will have been called */ 252 - if( ALWAYS(p) ){ 247 + if( p ){ 253 248 if( p->nTotal==0 ){ 254 249 p->nTotal = sqlite3_value_int64(apArg[0]); 255 250 } 256 251 p->nStep++; 257 252 if( p->nValue==0 ){ 258 253 p->nValue = p->nStep; 259 254 } ................................................................................ 284 279 int nArg, 285 280 sqlite3_value **apArg 286 281 ){ 287 282 struct CallCount *p; 288 283 assert( nArg==1 ); UNUSED_PARAMETER(nArg); 289 284 290 285 p = (struct CallCount*)sqlite3_aggregate_context(pCtx, sizeof(*p)); 291 - /* p is not NULL because cume_distValueFunc() will have been called first */ 292 - if( ALWAYS(p) ){ 286 + if( p ){ 293 287 if( p->nTotal==0 ){ 294 288 p->nTotal = sqlite3_value_int64(apArg[0]); 295 289 } 296 290 p->nStep++; 297 291 } 298 292 } 299 293 static void cume_distValueFunc(sqlite3_context *pCtx){ ................................................................................ 324 318 sqlite3_context *pCtx, 325 319 int nArg, 326 320 sqlite3_value **apArg 327 321 ){ 328 322 struct NtileCtx *p; 329 323 assert( nArg==2 ); UNUSED_PARAMETER(nArg); 330 324 p = (struct NtileCtx*)sqlite3_aggregate_context(pCtx, sizeof(*p)); 331 - /* p is not NULL because ntimeValueFunc() will have been called first */ 332 - if( ALWAYS(p) ){ 325 + if( p ){ 333 326 if( p->nTotal==0 ){ 334 327 p->nParam = sqlite3_value_int64(apArg[0]); 335 328 p->nTotal = sqlite3_value_int64(apArg[1]); 336 329 if( p->nParam<=0 ){ 337 330 sqlite3_result_error( 338 331 pCtx, "argument of ntile must be a positive integer", -1 339 332 );