setop/sqlite-parquet-vtable
1
0
Fork 0
mirror of https://github.com/cldellow/sqlite-parquet-vtable.git synced 2025-09-14 22:39:59 +00:00
Code Releases Activity

better debug logs for xBestIndex

Browse Source
This commit is contained in:
Colin Dellow
2018-03-08 13:21:33 -05:00
parent 2d616c54fb
commit 824a416f51
4 changed files with 64 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
parquet/parquet.cc
View File

@@ -143,6 +143,40 @@ static int parquetOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){
return SQLITE_OK;
}
const char* opName(int op) {
switch(op) {
case SQLITE_INDEX_CONSTRAINT_EQ:
return "=";
case SQLITE_INDEX_CONSTRAINT_GT:
return ">";
case SQLITE_INDEX_CONSTRAINT_LE:
return "<=";
case SQLITE_INDEX_CONSTRAINT_LT:
return "<";
case SQLITE_INDEX_CONSTRAINT_GE:
return ">=";
case SQLITE_INDEX_CONSTRAINT_MATCH:
return "match";
case SQLITE_INDEX_CONSTRAINT_LIKE:
return "LIKE";
case SQLITE_INDEX_CONSTRAINT_GLOB:
return "GLOB";
case SQLITE_INDEX_CONSTRAINT_REGEXP:
return "REGEXP";
case SQLITE_INDEX_CONSTRAINT_NE:
return "!=";
case SQLITE_INDEX_CONSTRAINT_ISNOT:
return "IS NOT";
case SQLITE_INDEX_CONSTRAINT_ISNOTNULL:
return "IS NOT NULL";
case SQLITE_INDEX_CONSTRAINT_ISNULL:
return "IS NULL";
case SQLITE_INDEX_CONSTRAINT_IS:
return "IS";
default:
return "unknown";
}
}
/*
** Advance a sqlite3_vtab_cursor_parquet to its next row of input.
@@ -249,10 +283,14 @@ static int parquetEof(sqlite3_vtab_cursor *cur){
*/
static int parquetFilter(
sqlite3_vtab_cursor *cur,
int idxNum, const char *idxStr,
int argc, sqlite3_value **argv
int idxNum,
const char *idxStr,
int argc,
sqlite3_value **argv
){
printf("xFilter: idxNum=%d\n", idxNum);
printf("xFilter: idxNum=%d, idxStr=%lu, argc=%d\n", idxNum, (long unsigned int)idxStr, argc);
const unsigned char* needle = sqlite3_value_text(argv[0]);
printf(" ...%s\n", needle);
ParquetCursor* cursor = ((sqlite3_vtab_cursor_parquet*)cur)->cursor;
cursor->reset();
return parquetNext(cur);
@@ -266,17 +304,21 @@ static int parquetBestIndex(
sqlite3_vtab *tab,
sqlite3_index_info *pIdxInfo
){
ParquetTable* table = ((sqlite3_vtab_parquet*)tab)->table;
printf("xBestIndex: nConstraint=%d, nOrderBy=%d\n", pIdxInfo->nConstraint, pIdxInfo->nOrderBy);
// Duplicate pIdxInfo and stash it in pIdxInfo->idxStr.
for(int i = 0; i < pIdxInfo->nConstraint; i++) {
printf(" constraint %d: col %d, op %d, usable %d\n",
printf(" constraint %d: col %d[%s], op %d[%s], usable %d\n",
i,
pIdxInfo->aConstraint[i].iColumn,
table->columnName(pIdxInfo->aConstraint[i].iColumn).data(),
pIdxInfo->aConstraint[i].op,
opName(pIdxInfo->aConstraint[i].op),
pIdxInfo->aConstraint[i].usable);
}
if(true || (pIdxInfo->nConstraint == 0 && pIdxInfo->nOrderBy == 0)) {
if((pIdxInfo->nConstraint == 0 && pIdxInfo->nOrderBy == 0)) {
pIdxInfo->estimatedCost = 1000000000000;
pIdxInfo->idxNum = 0;
pIdxInfo->estimatedRows = 10000;