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Overview
Comment: | Convert the implementation of the ".dbstat" dot-command of the command-line shell to use the sqlite_dbpage table. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | dbpage |
Files: | files | file ages | folders |
SHA3-256: |
497409e167c7c025fbddc319b4fa9a8b |
User & Date: | drh 2017-10-11 17:51:08.392 |
Context
2017-10-11
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18:00 | Add new extension "checkfreelist", which uses sqlite_dbpage to check that there are no invalid entries on the database free-list. (check-in: 21930ef537 user: dan tags: dbpage) | |
17:51 | Convert the implementation of the ".dbstat" dot-command of the command-line shell to use the sqlite_dbpage table. (check-in: 497409e167 user: drh tags: dbpage) | |
17:13 | Enable sqlite_dbpage and dbstat virtual tables in the shell, by default. (check-in: 01bf856c42 user: drh tags: dbpage) | |
Changes
Changes to src/shell.c.
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4966 4967 4968 4969 4970 4971 4972 | { "number of triggers:", "SELECT count(*) FROM %s WHERE type='trigger'" }, { "number of views:", "SELECT count(*) FROM %s WHERE type='view'" }, { "schema size:", "SELECT total(length(sql)) FROM %s" }, }; | < > | | | > > > > > | < < > | 4966 4967 4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978 4979 4980 4981 4982 4983 4984 4985 4986 4987 4988 4989 4990 4991 4992 4993 4994 4995 4996 4997 | { "number of triggers:", "SELECT count(*) FROM %s WHERE type='trigger'" }, { "number of views:", "SELECT count(*) FROM %s WHERE type='view'" }, { "schema size:", "SELECT total(length(sql)) FROM %s" }, }; int i; char *zSchemaTab; char *zDb = nArg>=2 ? azArg[1] : "main"; sqlite3_stmt *pStmt = 0; unsigned char aHdr[100]; open_db(p, 0); if( p->db==0 ) return 1; sqlite3_prepare_v2(p->db,"SELECT data FROM sqlite_dbpage(?1) WHERE pgno=1", -1, &pStmt, 0); sqlite3_bind_text(pStmt, 1, zDb, -1, SQLITE_STATIC); if( sqlite3_step(pStmt)==SQLITE_ROW && sqlite3_column_bytes(pStmt,0)>100 ){ memcpy(aHdr, sqlite3_column_blob(pStmt,0), 100); sqlite3_finalize(pStmt); }else{ raw_printf(stderr, "unable to read database header\n"); sqlite3_finalize(pStmt); return 1; } i = get2byteInt(aHdr+16); if( i==1 ) i = 65536; utf8_printf(p->out, "%-20s %d\n", "database page size:", i); utf8_printf(p->out, "%-20s %d\n", "write format:", aHdr[18]); utf8_printf(p->out, "%-20s %d\n", "read format:", aHdr[19]); |
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Changes to src/shell.c.in.
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3606 3607 3608 3609 3610 3611 3612 | { "number of triggers:", "SELECT count(*) FROM %s WHERE type='trigger'" }, { "number of views:", "SELECT count(*) FROM %s WHERE type='view'" }, { "schema size:", "SELECT total(length(sql)) FROM %s" }, }; | < > | | | > > > > > | < < > | 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 | { "number of triggers:", "SELECT count(*) FROM %s WHERE type='trigger'" }, { "number of views:", "SELECT count(*) FROM %s WHERE type='view'" }, { "schema size:", "SELECT total(length(sql)) FROM %s" }, }; int i; char *zSchemaTab; char *zDb = nArg>=2 ? azArg[1] : "main"; sqlite3_stmt *pStmt = 0; unsigned char aHdr[100]; open_db(p, 0); if( p->db==0 ) return 1; sqlite3_prepare_v2(p->db,"SELECT data FROM sqlite_dbpage(?1) WHERE pgno=1", -1, &pStmt, 0); sqlite3_bind_text(pStmt, 1, zDb, -1, SQLITE_STATIC); if( sqlite3_step(pStmt)==SQLITE_ROW && sqlite3_column_bytes(pStmt,0)>100 ){ memcpy(aHdr, sqlite3_column_blob(pStmt,0), 100); sqlite3_finalize(pStmt); }else{ raw_printf(stderr, "unable to read database header\n"); sqlite3_finalize(pStmt); return 1; } i = get2byteInt(aHdr+16); if( i==1 ) i = 65536; utf8_printf(p->out, "%-20s %d\n", "database page size:", i); utf8_printf(p->out, "%-20s %d\n", "write format:", aHdr[18]); utf8_printf(p->out, "%-20s %d\n", "read format:", aHdr[19]); |
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