/* ** 2002 February 23 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains the C functions that implement various SQL ** functions of SQLite. ** ** There is only one exported symbol in this file - the function ** sqliteRegisterBuildinFunctions() found at the bottom of the file. ** All other code has file scope. ** ** $Id: func.c,v 1.1.1.1 2006/02/03 20:35:12 hoganrobert Exp $ */ #include "sqliteInt.h" #include #include #include #include #include "vdbeInt.h" #include "os.h" static CollSeq *sqlite3GetFuncCollSeq(sqlite3_context *context){ return context->pColl; } /* ** Implementation of the non-aggregate min() and max() functions */ static void minmaxFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ int i; int mask; /* 0 for min() or 0xffffffff for max() */ int iBest; CollSeq *pColl; if( argc==0 ) return; mask = sqlite3_user_data(context)==0 ? 0 : -1; pColl = sqlite3GetFuncCollSeq(context); assert( pColl ); assert( mask==-1 || mask==0 ); iBest = 0; if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return; for(i=1; i=0 ){ iBest = i; } } sqlite3_result_value(context, argv[iBest]); } /* ** Return the type of the argument. */ static void typeofFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ const char *z = 0; switch( sqlite3_value_type(argv[0]) ){ case SQLITE_NULL: z = "null"; break; case SQLITE_INTEGER: z = "integer"; break; case SQLITE_TEXT: z = "text"; break; case SQLITE_FLOAT: z = "real"; break; case SQLITE_BLOB: z = "blob"; break; } sqlite3_result_text(context, z, -1, SQLITE_STATIC); } /* ** Implementation of the length() function */ static void lengthFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ int len; assert( argc==1 ); switch( sqlite3_value_type(argv[0]) ){ case SQLITE_BLOB: case SQLITE_INTEGER: case SQLITE_FLOAT: { sqlite3_result_int(context, sqlite3_value_bytes(argv[0])); break; } case SQLITE_TEXT: { const char *z = sqlite3_value_text(argv[0]); for(len=0; *z; z++){ if( (0xc0&*z)!=0x80 ) len++; } sqlite3_result_int(context, len); break; } default: { sqlite3_result_null(context); break; } } } /* ** Implementation of the abs() function */ static void absFunc(sqlite3_context *context, int argc, sqlite3_value **argv){ assert( argc==1 ); switch( sqlite3_value_type(argv[0]) ){ case SQLITE_INTEGER: { i64 iVal = sqlite3_value_int64(argv[0]); if( iVal<0 ) iVal = iVal * -1; sqlite3_result_int64(context, iVal); break; } case SQLITE_NULL: { sqlite3_result_null(context); break; } default: { double rVal = sqlite3_value_double(argv[0]); if( rVal<0 ) rVal = rVal * -1.0; sqlite3_result_double(context, rVal); break; } } } /* ** Implementation of the substr() function */ static void substrFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ const char *z; const char *z2; int i; int p1, p2, len; assert( argc==3 ); z = sqlite3_value_text(argv[0]); if( z==0 ) return; p1 = sqlite3_value_int(argv[1]); p2 = sqlite3_value_int(argv[2]); for(len=0, z2=z; *z2; z2++){ if( (0xc0&*z2)!=0x80 ) len++; } if( p1<0 ){ p1 += len; if( p1<0 ){ p2 += p1; p1 = 0; } }else if( p1>0 ){ p1--; } if( p1+p2>len ){ p2 = len-p1; } for(i=0; i30 ) n = 30; if( n<0 ) n = 0; } if( SQLITE_NULL==sqlite3_value_type(argv[0]) ) return; r = sqlite3_value_double(argv[0]); sprintf(zBuf,"%.*f",n,r); sqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT); } /* ** Implementation of the upper() and lower() SQL functions. */ static void upperFunc(sqlite3_context *context, int argc, sqlite3_value **argv){ unsigned char *z; int i; if( argc<1 || SQLITE_NULL==sqlite3_value_type(argv[0]) ) return; z = sqliteMalloc(sqlite3_value_bytes(argv[0])+1); if( z==0 ) return; strcpy(z, sqlite3_value_text(argv[0])); for(i=0; z[i]; i++){ z[i] = toupper(z[i]); } sqlite3_result_text(context, z, -1, SQLITE_TRANSIENT); sqliteFree(z); } static void lowerFunc(sqlite3_context *context, int argc, sqlite3_value **argv){ unsigned char *z; int i; if( argc<1 || SQLITE_NULL==sqlite3_value_type(argv[0]) ) return; z = sqliteMalloc(sqlite3_value_bytes(argv[0])+1); if( z==0 ) return; strcpy(z, sqlite3_value_text(argv[0])); for(i=0; z[i]; i++){ z[i] = tolower(z[i]); } sqlite3_result_text(context, z, -1, SQLITE_TRANSIENT); sqliteFree(z); } /* ** Implementation of the IFNULL(), NVL(), and COALESCE() functions. ** All three do the same thing. They return the first non-NULL ** argument. */ static void ifnullFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ int i; for(i=0; imatchOne; u8 matchAll = pInfo->matchAll; u8 matchSet = pInfo->matchSet; u8 noCase = pInfo->noCase; int prevEscape = 0; /* True if the previous character was 'escape' */ while( (c = *zPattern)!=0 ){ if( !prevEscape && c==matchAll ){ while( (c=zPattern[1]) == matchAll || c == matchOne ){ if( c==matchOne ){ if( *zString==0 ) return 0; sqliteNextChar(zString); } zPattern++; } if( c && esc && sqlite3ReadUtf8(&zPattern[1])==esc ){ u8 const *zTemp = &zPattern[1]; sqliteNextChar(zTemp); c = *zTemp; } if( c==0 ) return 1; if( c==matchSet ){ assert( esc==0 ); /* This is GLOB, not LIKE */ while( *zString && patternCompare(&zPattern[1],zString,pInfo,esc)==0 ){ sqliteNextChar(zString); } return *zString!=0; }else{ while( (c2 = *zString)!=0 ){ if( noCase ){ c2 = sqlite3UpperToLower[c2]; c = sqlite3UpperToLower[c]; while( c2 != 0 && c2 != c ){ c2 = sqlite3UpperToLower[*++zString]; } }else{ while( c2 != 0 && c2 != c ){ c2 = *++zString; } } if( c2==0 ) return 0; if( patternCompare(&zPattern[1],zString,pInfo,esc) ) return 1; sqliteNextChar(zString); } return 0; } }else if( !prevEscape && c==matchOne ){ if( *zString==0 ) return 0; sqliteNextChar(zString); zPattern++; }else if( c==matchSet ){ int prior_c = 0; assert( esc==0 ); /* This only occurs for GLOB, not LIKE */ seen = 0; invert = 0; c = sqliteCharVal(zString); if( c==0 ) return 0; c2 = *++zPattern; if( c2=='^' ){ invert = 1; c2 = *++zPattern; } if( c2==']' ){ if( c==']' ) seen = 1; c2 = *++zPattern; } while( (c2 = sqliteCharVal(zPattern))!=0 && c2!=']' ){ if( c2=='-' && zPattern[1]!=']' && zPattern[1]!=0 && prior_c>0 ){ zPattern++; c2 = sqliteCharVal(zPattern); if( c>=prior_c && c<=c2 ) seen = 1; prior_c = 0; }else if( c==c2 ){ seen = 1; prior_c = c2; }else{ prior_c = c2; } sqliteNextChar(zPattern); } if( c2==0 || (seen ^ invert)==0 ) return 0; sqliteNextChar(zString); zPattern++; }else if( esc && !prevEscape && sqlite3ReadUtf8(zPattern)==esc){ prevEscape = 1; sqliteNextChar(zPattern); }else{ if( noCase ){ if( sqlite3UpperToLower[c] != sqlite3UpperToLower[*zString] ) return 0; }else{ if( c != *zString ) return 0; } zPattern++; zString++; prevEscape = 0; } } return *zString==0; } /* ** Implementation of the like() SQL function. This function implements ** the build-in LIKE operator. The first argument to the function is the ** pattern and the second argument is the string. So, the SQL statements: ** ** A LIKE B ** ** is implemented as like(B,A). ** ** If the pointer retrieved by via a call to sqlite3_user_data() is ** not NULL, then this function uses UTF-16. Otherwise UTF-8. */ static void likeFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ const unsigned char *zA = sqlite3_value_text(argv[0]); const unsigned char *zB = sqlite3_value_text(argv[1]); int escape = 0; if( argc==3 ){ /* The escape character string must consist of a single UTF-8 character. ** Otherwise, return an error. */ const unsigned char *zEsc = sqlite3_value_text(argv[2]); if( sqlite3utf8CharLen(zEsc, -1)!=1 ){ sqlite3_result_error(context, "ESCAPE expression must be a single character", -1); return; } escape = sqlite3ReadUtf8(zEsc); } if( zA && zB ){ sqlite3_result_int(context, patternCompare(zA, zB, &likeInfo, escape)); } } /* ** Implementation of the glob() SQL function. This function implements ** the build-in GLOB operator. The first argument to the function is the ** string and the second argument is the pattern. So, the SQL statements: ** ** A GLOB B ** ** is implemented as glob(B,A). */ static void globFunc(sqlite3_context *context, int arg, sqlite3_value **argv){ const unsigned char *zA = sqlite3_value_text(argv[0]); const unsigned char *zB = sqlite3_value_text(argv[1]); if( zA && zB ){ sqlite3_result_int(context, patternCompare(zA, zB, &globInfo, 0)); } } /* ** Implementation of the NULLIF(x,y) function. The result is the first ** argument if the arguments are different. The result is NULL if the ** arguments are equal to each other. */ static void nullifFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ CollSeq *pColl = sqlite3GetFuncCollSeq(context); if( sqlite3MemCompare(argv[0], argv[1], pColl)!=0 ){ sqlite3_result_value(context, argv[0]); } } /* ** Implementation of the VERSION(*) function. The result is the version ** of the SQLite library that is running. */ static void versionFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ sqlite3_result_text(context, sqlite3_version, -1, SQLITE_STATIC); } /* ** EXPERIMENTAL - This is not an official function. The interface may ** change. This function may disappear. Do not write code that depends ** on this function. ** ** Implementation of the TQUOTE() function. This function takes a single ** argument. If the argument is numeric, the return value is the same as ** the argument. If the argument is NULL, the return value is the string ** "NULL". Otherwise, the argument is enclosed in single quotes with ** single-quote escapes. */ static void quoteFunc(sqlite3_context *context, int argc, sqlite3_value **argv){ if( argc<1 ) return; switch( sqlite3_value_type(argv[0]) ){ case SQLITE_NULL: { sqlite3_result_text(context, "NULL", 4, SQLITE_STATIC); break; } case SQLITE_INTEGER: case SQLITE_FLOAT: { sqlite3_result_value(context, argv[0]); break; } case SQLITE_BLOB: { static const char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; char *zText = 0; int nBlob = sqlite3_value_bytes(argv[0]); char const *zBlob = sqlite3_value_blob(argv[0]); zText = (char *)sqliteMalloc((2*nBlob)+4); if( !zText ){ sqlite3_result_error(context, "out of memory", -1); }else{ int i; for(i=0; i>4)&0x0F]; zText[(i*2)+3] = hexdigits[(zBlob[i])&0x0F]; } zText[(nBlob*2)+2] = '\''; zText[(nBlob*2)+3] = '\0'; zText[0] = 'X'; zText[1] = '\''; sqlite3_result_text(context, zText, -1, SQLITE_TRANSIENT); sqliteFree(zText); } break; } case SQLITE_TEXT: { int i,j,n; const char *zArg = sqlite3_value_text(argv[0]); char *z; for(i=n=0; zArg[i]; i++){ if( zArg[i]=='\'' ) n++; } z = sqliteMalloc( i+n+3 ); if( z==0 ) return; z[0] = '\''; for(i=0, j=1; zArg[i]; i++){ z[j++] = zArg[i]; if( zArg[i]=='\'' ){ z[j++] = '\''; } } z[j++] = '\''; z[j] = 0; sqlite3_result_text(context, z, j, SQLITE_TRANSIENT); sqliteFree(z); } } } #ifdef SQLITE_SOUNDEX /* ** Compute the soundex encoding of a word. */ static void soundexFunc(sqlite3_context *context, int argc, sqlite3_value **argv){ char zResult[8]; const u8 *zIn; int i, j; static const unsigned char iCode[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0, 1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0, 1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0, }; assert( argc==1 ); zIn = (u8*)sqlite3_value_text(argv[0]); for(i=0; zIn[i] && !isalpha(zIn[i]); i++){} if( zIn[i] ){ zResult[0] = toupper(zIn[i]); for(j=1; j<4 && zIn[i]; i++){ int code = iCode[zIn[i]&0x7f]; if( code>0 ){ zResult[j++] = code + '0'; } } while( j<4 ){ zResult[j++] = '0'; } zResult[j] = 0; sqlite3_result_text(context, zResult, 4, SQLITE_TRANSIENT); }else{ sqlite3_result_text(context, "?000", 4, SQLITE_STATIC); } } #endif #ifdef SQLITE_TEST /* ** This function generates a string of random characters. Used for ** generating test data. */ static void randStr(sqlite3_context *context, int argc, sqlite3_value **argv){ static const unsigned char zSrc[] = "abcdefghijklmnopqrstuvwxyz" "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "0123456789" ".-!,:*^+=_|?/<> "; int iMin, iMax, n, r, i; unsigned char zBuf[1000]; if( argc>=1 ){ iMin = sqlite3_value_int(argv[0]); if( iMin<0 ) iMin = 0; if( iMin>=sizeof(zBuf) ) iMin = sizeof(zBuf)-1; }else{ iMin = 1; } if( argc>=2 ){ iMax = sqlite3_value_int(argv[1]); if( iMax=sizeof(zBuf) ) iMax = sizeof(zBuf)-1; }else{ iMax = 50; } n = iMin; if( iMax>iMin ){ sqlite3Randomness(sizeof(r), &r); r &= 0x7fffffff; n += r%(iMax + 1 - iMin); } assert( nenc); zVal = sqliteMalloc(len+3); zVal[len] = 0; zVal[len-1] = 0; assert( zVal ); zVal++; memcpy(zVal, sqlite3ValueText(argv[0], db->enc), len); if( db->enc==SQLITE_UTF8 ){ sqlite3_result_text(pCtx, zVal, -1, destructor); #ifndef SQLITE_OMIT_UTF16 }else if( db->enc==SQLITE_UTF16LE ){ sqlite3_result_text16le(pCtx, zVal, -1, destructor); }else{ sqlite3_result_text16be(pCtx, zVal, -1, destructor); #endif /* SQLITE_OMIT_UTF16 */ } } static void test_destructor_count( sqlite3_context *pCtx, int nArg, sqlite3_value **argv ){ sqlite3_result_int(pCtx, test_destructor_count_var); } #endif /* SQLITE_TEST */ #ifdef SQLITE_TEST /* ** Routines for testing the sqlite3_get_auxdata() and sqlite3_set_auxdata() ** interface. ** ** The test_auxdata() SQL function attempts to register each of its arguments ** as auxiliary data. If there are no prior registrations of aux data for ** that argument (meaning the argument is not a constant or this is its first ** call) then the result for that argument is 0. If there is a prior ** registration, the result for that argument is 1. The overall result ** is the individual argument results separated by spaces. */ static void free_test_auxdata(void *p) {sqliteFree(p);} static void test_auxdata( sqlite3_context *pCtx, int nArg, sqlite3_value **argv ){ int i; char *zRet = sqliteMalloc(nArg*2); if( !zRet ) return; for(i=0; isum += sqlite3_value_double(argv[0]); p->cnt++; } } static void sumFinalize(sqlite3_context *context){ SumCtx *p; p = sqlite3_aggregate_context(context, sizeof(*p)); sqlite3_result_double(context, p ? p->sum : 0.0); } static void avgFinalize(sqlite3_context *context){ SumCtx *p; p = sqlite3_aggregate_context(context, sizeof(*p)); if( p && p->cnt>0 ){ sqlite3_result_double(context, p->sum/(double)p->cnt); } } /* ** An instance of the following structure holds the context of a ** variance or standard deviation computation. */ typedef struct StdDevCtx StdDevCtx; struct StdDevCtx { double sum; /* Sum of terms */ double sum2; /* Sum of the squares of terms */ int cnt; /* Number of terms counted */ }; /* ** The following structure keeps track of state information for the ** count() aggregate function. */ typedef struct CountCtx CountCtx; struct CountCtx { int n; }; /* ** Routines to implement the count() aggregate function. */ static void countStep(sqlite3_context *context, int argc, sqlite3_value **argv){ CountCtx *p; p = sqlite3_aggregate_context(context, sizeof(*p)); if( (argc==0 || SQLITE_NULL!=sqlite3_value_type(argv[0])) && p ){ p->n++; } } static void countFinalize(sqlite3_context *context){ CountCtx *p; p = sqlite3_aggregate_context(context, sizeof(*p)); sqlite3_result_int(context, p ? p->n : 0); } /* ** This function tracks state information for the min() and max() ** aggregate functions. */ typedef struct MinMaxCtx MinMaxCtx; struct MinMaxCtx { char *z; /* The best so far */ char zBuf[28]; /* Space that can be used for storage */ }; /* ** Routines to implement min() and max() aggregate functions. */ static void minmaxStep(sqlite3_context *context, int argc, sqlite3_value **argv){ Mem *pArg = (Mem *)argv[0]; Mem *pBest; if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return; pBest = (Mem *)sqlite3_aggregate_context(context, sizeof(*pBest)); if( !pBest ) return; if( pBest->flags ){ int max; int cmp; CollSeq *pColl = sqlite3GetFuncCollSeq(context); /* This step function is used for both the min() and max() aggregates, ** the only difference between the two being that the sense of the ** comparison is inverted. For the max() aggregate, the ** sqlite3_user_data() function returns (void *)-1. For min() it ** returns (void *)db, where db is the sqlite3* database pointer. ** Therefore the next statement sets variable 'max' to 1 for the max() ** aggregate, or 0 for min(). */ max = ((sqlite3_user_data(context)==(void *)-1)?1:0); cmp = sqlite3MemCompare(pBest, pArg, pColl); if( (max && cmp<0) || (!max && cmp>0) ){ sqlite3VdbeMemCopy(pBest, pArg); } }else{ sqlite3VdbeMemCopy(pBest, pArg); } } static void minMaxFinalize(sqlite3_context *context){ sqlite3_value *pRes; pRes = (sqlite3_value *)sqlite3_aggregate_context(context, sizeof(Mem)); if( pRes->flags ){ sqlite3_result_value(context, pRes); } sqlite3VdbeMemRelease(pRes); } /* ** This function registered all of the above C functions as SQL ** functions. This should be the only routine in this file with ** external linkage. */ void sqlite3RegisterBuiltinFunctions(sqlite3 *db){ static const struct { char *zName; signed char nArg; u8 argType; /* 0: none. 1: db 2: (-1) */ u8 eTextRep; /* 1: UTF-16. 0: UTF-8 */ u8 needCollSeq; void (*xFunc)(sqlite3_context*,int,sqlite3_value **); } aFuncs[] = { { "min", -1, 0, SQLITE_UTF8, 1, minmaxFunc }, { "min", 0, 0, SQLITE_UTF8, 1, 0 }, { "max", -1, 2, SQLITE_UTF8, 1, minmaxFunc }, { "max", 0, 2, SQLITE_UTF8, 1, 0 }, { "typeof", 1, 0, SQLITE_UTF8, 0, typeofFunc }, { "length", 1, 0, SQLITE_UTF8, 0, lengthFunc }, { "substr", 3, 0, SQLITE_UTF8, 0, substrFunc }, #ifndef SQLITE_OMIT_UTF16 { "substr", 3, 0, SQLITE_UTF16LE, 0, sqlite3utf16Substr }, #endif { "abs", 1, 0, SQLITE_UTF8, 0, absFunc }, { "round", 1, 0, SQLITE_UTF8, 0, roundFunc }, { "round", 2, 0, SQLITE_UTF8, 0, roundFunc }, { "upper", 1, 0, SQLITE_UTF8, 0, upperFunc }, { "lower", 1, 0, SQLITE_UTF8, 0, lowerFunc }, { "coalesce", -1, 0, SQLITE_UTF8, 0, ifnullFunc }, { "coalesce", 0, 0, SQLITE_UTF8, 0, 0 }, { "coalesce", 1, 0, SQLITE_UTF8, 0, 0 }, { "ifnull", 2, 0, SQLITE_UTF8, 1, ifnullFunc }, { "random", -1, 0, SQLITE_UTF8, 0, randomFunc }, { "like", 2, 0, SQLITE_UTF8, 0, likeFunc }, { "like", 3, 0, SQLITE_UTF8, 0, likeFunc }, { "glob", 2, 0, SQLITE_UTF8, 0, globFunc }, { "nullif", 2, 0, SQLITE_UTF8, 1, nullifFunc }, { "sqlite_version", 0, 0, SQLITE_UTF8, 0, versionFunc}, { "quote", 1, 0, SQLITE_UTF8, 0, quoteFunc }, { "last_insert_rowid", 0, 1, SQLITE_UTF8, 0, last_insert_rowid }, { "changes", 0, 1, SQLITE_UTF8, 0, changes }, { "total_changes", 0, 1, SQLITE_UTF8, 0, total_changes }, #ifdef SQLITE_SOUNDEX { "soundex", 1, 0, SQLITE_UTF8, 0, soundexFunc}, #endif #ifdef SQLITE_TEST { "randstr", 2, 0, SQLITE_UTF8, 0, randStr }, { "test_destructor", 1, 1, SQLITE_UTF8, 0, test_destructor}, { "test_destructor_count", 0, 0, SQLITE_UTF8, 0, test_destructor_count}, { "test_auxdata", -1, 0, SQLITE_UTF8, 0, test_auxdata}, { "test_error", 1, 0, SQLITE_UTF8, 0, test_error}, #endif }; static const struct { char *zName; signed char nArg; u8 argType; u8 needCollSeq; void (*xStep)(sqlite3_context*,int,sqlite3_value**); void (*xFinalize)(sqlite3_context*); } aAggs[] = { { "min", 1, 0, 1, minmaxStep, minMaxFinalize }, { "max", 1, 2, 1, minmaxStep, minMaxFinalize }, { "sum", 1, 0, 0, sumStep, sumFinalize }, { "avg", 1, 0, 0, sumStep, avgFinalize }, { "count", 0, 0, 0, countStep, countFinalize }, { "count", 1, 0, 0, countStep, countFinalize }, }; int i; for(i=0; ineedCollSeq = 1; } } } #ifndef SQLITE_OMIT_ALTERTABLE sqlite3AlterFunctions(db); #endif for(i=0; ineedCollSeq = 1; } } } sqlite3RegisterDateTimeFunctions(db); #ifdef SQLITE_SSE { sqlite3SseFunctions(db); } #endif }