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Overview
| Comment: | Setting ".stats 2" in the CLI causes column metadata for each prepared statement to be displayed. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
7fea00fd96a8ab7e65734540edb907b6 |
| User & Date: | drh 2018-03-09 16:37:05 |
Context
|
2018-03-09
| ||
| 21:54 | Enhance the ".ar" command in the CLI so that it is able to update and create ZIP Archives. check-in: 9404765e user: drh tags: trunk | |
| 16:37 | Setting ".stats 2" in the CLI causes column metadata for each prepared statement to be displayed. check-in: 7fea00fd user: drh tags: trunk | |
| 15:24 | Simplification to the shell_exec() mechanism in the CLI. check-in: 72e8f529 user: drh tags: trunk | |
Changes
Changes to src/shell.c.in.
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static int display_stats(
sqlite3 *db, /* Database to query */
ShellState *pArg, /* Pointer to ShellState */
int bReset /* True to reset the stats */
){
int iCur;
int iHiwtr;
if( pArg && pArg->out ){
displayStatLine(pArg, "Memory Used:",
"%lld (max %lld) bytes", SQLITE_STATUS_MEMORY_USED, bReset);
displayStatLine(pArg, "Number of Outstanding Allocations:",
"%lld (max %lld)", SQLITE_STATUS_MALLOC_COUNT, bReset);
if( pArg->shellFlgs & SHFLG_Pagecache ){
displayStatLine(pArg, "Number of Pcache Pages Used:",
"%lld (max %lld) pages", SQLITE_STATUS_PAGECACHE_USED, bReset);
}
displayStatLine(pArg, "Number of Pcache Overflow Bytes:",
"%lld (max %lld) bytes", SQLITE_STATUS_PAGECACHE_OVERFLOW, bReset);
displayStatLine(pArg, "Largest Allocation:",
"%lld bytes", SQLITE_STATUS_MALLOC_SIZE, bReset);
displayStatLine(pArg, "Largest Pcache Allocation:",
"%lld bytes", SQLITE_STATUS_PAGECACHE_SIZE, bReset);
#ifdef YYTRACKMAXSTACKDEPTH
displayStatLine(pArg, "Deepest Parser Stack:",
"%lld (max %lld)", SQLITE_STATUS_PARSER_STACK, bReset);
#endif
}
if( pArg && pArg->out && db ){
if( pArg->shellFlgs & SHFLG_Lookaside ){
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED,
&iCur, &iHiwtr, bReset);
raw_printf(pArg->out,
"Lookaside Slots Used: %d (max %d)\n",
iCur, iHiwtr);
................................................................................
iCur);
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHiwtr, bReset);
raw_printf(pArg->out, "Statement Heap/Lookaside Usage: %d bytes\n",
iCur);
}
if( pArg && pArg->out && db && pArg->pStmt ){
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FULLSCAN_STEP,
bReset);
raw_printf(pArg->out, "Fullscan Steps: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_SORT, bReset);
raw_printf(pArg->out, "Sort Operations: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_AUTOINDEX,bReset);
raw_printf(pArg->out, "Autoindex Inserts: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_VM_STEP, bReset);
raw_printf(pArg->out, "Virtual Machine Steps: %d\n", iCur);
}
#ifdef __linux__
displayLinuxIoStats(pArg->out);
#endif
/* Do not remove this machine readable comment: extra-stats-output-here */
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static int display_stats(
sqlite3 *db, /* Database to query */
ShellState *pArg, /* Pointer to ShellState */
int bReset /* True to reset the stats */
){
int iCur;
int iHiwtr;
FILE *out;
if( pArg==0 || pArg->out==0 ) return 0;
out = pArg->out;
if( pArg->pStmt && (pArg->statsOn & 2) ){
int nCol, i, x;
sqlite3_stmt *pStmt = pArg->pStmt;
char z[100];
nCol = sqlite3_column_count(pStmt);
raw_printf(out, "%-36s %d\n", "Number of output columns:", nCol);
for(i=0; i<nCol; i++){
sqlite3_snprintf(sizeof(z),z,"Column %d %nname:", i, &x);
utf8_printf(out, "%-36s %s\n", z, sqlite3_column_name(pStmt,i));
sqlite3_snprintf(30, z+x, "declared type:");
utf8_printf(out, "%-36s %s\n", z, sqlite3_column_decltype(pStmt, i));
#ifdef SQLITE_ENABLE_COLUMN_METADATA
sqlite3_snprintf(30, z+x, "database name:");
utf8_printf(out, "%-36s %s\n", z, sqlite3_column_database_name(pStmt,i));
sqlite3_snprintf(30, z+x, "table name:");
utf8_printf(out, "%-36s %s\n", z, sqlite3_column_table_name(pStmt,i));
sqlite3_snprintf(30, z+x, "origin name:");
utf8_printf(out, "%-36s %s\n", z, sqlite3_column_origin_name(pStmt,i));
#endif
}
}
displayStatLine(pArg, "Memory Used:",
"%lld (max %lld) bytes", SQLITE_STATUS_MEMORY_USED, bReset);
displayStatLine(pArg, "Number of Outstanding Allocations:",
"%lld (max %lld)", SQLITE_STATUS_MALLOC_COUNT, bReset);
if( pArg->shellFlgs & SHFLG_Pagecache ){
displayStatLine(pArg, "Number of Pcache Pages Used:",
"%lld (max %lld) pages", SQLITE_STATUS_PAGECACHE_USED, bReset);
}
displayStatLine(pArg, "Number of Pcache Overflow Bytes:",
"%lld (max %lld) bytes", SQLITE_STATUS_PAGECACHE_OVERFLOW, bReset);
displayStatLine(pArg, "Largest Allocation:",
"%lld bytes", SQLITE_STATUS_MALLOC_SIZE, bReset);
displayStatLine(pArg, "Largest Pcache Allocation:",
"%lld bytes", SQLITE_STATUS_PAGECACHE_SIZE, bReset);
#ifdef YYTRACKMAXSTACKDEPTH
displayStatLine(pArg, "Deepest Parser Stack:",
"%lld (max %lld)", SQLITE_STATUS_PARSER_STACK, bReset);
#endif
if( db ){
if( pArg->shellFlgs & SHFLG_Lookaside ){
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED,
&iCur, &iHiwtr, bReset);
raw_printf(pArg->out,
"Lookaside Slots Used: %d (max %d)\n",
iCur, iHiwtr);
................................................................................
iCur);
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHiwtr, bReset);
raw_printf(pArg->out, "Statement Heap/Lookaside Usage: %d bytes\n",
iCur);
}
if( pArg->pStmt ){
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FULLSCAN_STEP,
bReset);
raw_printf(pArg->out, "Fullscan Steps: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_SORT, bReset);
raw_printf(pArg->out, "Sort Operations: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_AUTOINDEX,bReset);
raw_printf(pArg->out, "Autoindex Inserts: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_VM_STEP, bReset);
raw_printf(pArg->out, "Virtual Machine Steps: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_REPREPARE, bReset);
raw_printf(pArg->out, "Reprepare operations: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_RUN, bReset);
raw_printf(pArg->out, "Number of times run: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_MEMUSED, bReset);
raw_printf(pArg->out, "Memory used by prepared stmt: %d\n", iCur);
}
#ifdef __linux__
displayLinuxIoStats(pArg->out);
#endif
/* Do not remove this machine readable comment: extra-stats-output-here */
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