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Overview
Comment:Mark the sha1() extension function as SQLITE_DETERMINISTIC.
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SHA3-256: 7d8dcfb95cea732e7588e7505bf80a171dd2e371b164c9435c6ac286060df6df
User & Date: drh 2020-02-10 19:24:49.300
Context
2020-02-12
11:57
When determining whether an == or IS constraint in a WHERE clause makes an ORDER BY term redundant, consider the collation sequence used by the == or IS comparison, not the collation sequence of the comparison expression itself. Possible fix for [fb8c538a8f]. (check-in: 16aed5d0c6 user: dan tags: trunk)
2020-02-10
19:24
Mark the sha1() extension function as SQLITE_DETERMINISTIC. (check-in: 7d8dcfb95c user: drh tags: trunk)
13:29
Fix the build for when SQLITE_VDBE_COVERAGE is used. (check-in: 084381649e user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to ext/misc/sha1.c.
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  sqlite3 *db,
  char **pzErrMsg,
  const sqlite3_api_routines *pApi
){
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Unused parameter */
  rc = sqlite3_create_function(db, "sha1", 1, SQLITE_UTF8|SQLITE_INNOCUOUS, 0,

                               sha1Func, 0, 0);
  if( rc==SQLITE_OK ){
    rc = sqlite3_create_function(db, "sha1_query", 1, 
                                 SQLITE_UTF8|SQLITE_DIRECTONLY, 0,
                                 sha1QueryFunc, 0, 0);
  }
  return rc;
}








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377
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  sqlite3 *db,
  char **pzErrMsg,
  const sqlite3_api_routines *pApi
){
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Unused parameter */
  rc = sqlite3_create_function(db, "sha1", 1, 
                       SQLITE_UTF8 | SQLITE_INNOCUOUS | SQLITE_DETERMINISTIC,
                               0, sha1Func, 0, 0);
  if( rc==SQLITE_OK ){
    rc = sqlite3_create_function(db, "sha1_query", 1, 
                                 SQLITE_UTF8|SQLITE_DIRECTONLY, 0,
                                 sha1QueryFunc, 0, 0);
  }
  return rc;
}