From: drh Date: Tue, 24 Jun 2014 00:59:15 +0000 (+0000) Subject: Add the showstat4.exe utility program for decoding and displaying the X-Git-Tag: version-3.8.6~98 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f127814eaea2b71c63f620dab60be4ba7a37a72f;p=thirdparty%2Fsqlite.git Add the showstat4.exe utility program for decoding and displaying the content of the sqlite_stat4 table in a database. FossilOrigin-Name: b4d9f6053d1d95fdc1eab8ce610b51e7df8d896d --- diff --git a/manifest b/manifest index 9a02b2a068..14bc9eca79 100644 --- a/manifest +++ b/manifest @@ -1,5 +1,5 @@ -C Add\sthe\s.fullschema\scommand\sto\sthe\ssqlite3.exe\sutility.\s\sThis\scommand\sshows\nthe\sschema\sand\sthe\scontent\sof\sthe\ssqlite_stat\stables,\sall\sin\sone\sgo.\s\sUseful\nwhen\sreporting\sproblems\swith\sthe\squery\splanner. -D 2014-06-23T23:28:13.644 +C Add\sthe\sshowstat4.exe\sutility\sprogram\sfor\sdecoding\sand\sdisplaying\sthe\s\ncontent\sof\sthe\ssqlite_stat4\stable\sin\sa\sdatabase. +D 2014-06-24T00:59:15.223 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f F Makefile.in b03432313a3aad96c706f8164fb9f5307eaf19f5 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23 @@ -1160,6 +1160,7 @@ F tool/restore_jrnl.tcl 6957a34f8f1f0f8285e07536225ec3b292a9024a F tool/rollback-test.c 9fc98427d1e23e84429d7e6d07d9094fbdec65a5 F tool/showdb.c b018a8a69d07050fc0fe9afcf17313cdef0cc599 F tool/showjournal.c b62cecaab86a4053d944c276bb5232e4d17ece02 +F tool/showstat4.c 47662af1e2c9567fd821da910b3a247c5c138021 F tool/showwal.c 3f7f7da5ec0cba51b1449a75f700493377da57b5 F tool/soak1.tcl 8d407956e1a45b485a8e072470a3e629a27037fe F tool/space_used.tcl f714c41a59e326b8b9042f415b628b561bafa06b @@ -1179,7 +1180,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4 F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f -P 07dda49c1bf8997a18c3368acb81b6d863ea38d6 -R 4c1bf033e13f45ce881081fa1f198f33 +P ebec48921c092e20c9d7608242b63db40b40be5e +R 0ce5547c26474f508ca16bdace146cd3 U drh -Z 8c91ced329194a39e8cdf52b6d2ec4dd +Z 0e7559d34a6f25f8be2f321b29251255 diff --git a/manifest.uuid b/manifest.uuid index bc939b8328..142fcbe956 100644 --- a/manifest.uuid +++ b/manifest.uuid @@ -1 +1 @@ -ebec48921c092e20c9d7608242b63db40b40be5e \ No newline at end of file +b4d9f6053d1d95fdc1eab8ce610b51e7df8d896d \ No newline at end of file diff --git a/tool/showstat4.c b/tool/showstat4.c new file mode 100644 index 0000000000..c85ab1c770 --- /dev/null +++ b/tool/showstat4.c @@ -0,0 +1,155 @@ +/* +** This utility program decodes and displays the content of the +** sqlite_stat4 table in the database file named on the command +** line. +*/ +#include +#include +#include +#include +#include "sqlite3.h" + +typedef sqlite3_int64 i64; /* 64-bit signed integer type */ + + +/* +** Convert the var-int format into i64. Return the number of bytes +** in the var-int. Write the var-int value into *pVal. +*/ +static int decodeVarint(const unsigned char *z, i64 *pVal){ + i64 v = 0; + int i; + for(i=0; i<8; i++){ + v = (v<<7) + (z[i]&0x7f); + if( (z[i]&0x80)==0 ){ *pVal = v; return i+1; } + } + v = (v<<8) + (z[i]&0xff); + *pVal = v; + return 9; +} + + + +int main(int argc, char **argv){ + sqlite3 *db; + sqlite3_stmt *pStmt; + char *zIdx = 0; + int rc, j, x, y, mxHdr; + const unsigned char *aSample; + int nSample; + i64 iVal; + const char *zSep; + + if( argc!=2 ){ + fprintf(stderr, "Usage: %s DATABASE-FILE\n", argv[0]); + exit(1); + } + rc = sqlite3_open(argv[1], &db); + if( rc!=SQLITE_OK || db==0 ){ + fprintf(stderr, "Cannot open database file [%s]\n", argv[1]); + exit(1); + } + rc = sqlite3_prepare_v2(db, + "SELECT tbl||'.'||idx, nEq, nLT, nDLt, sample " + "FROM sqlite_stat4 ORDER BY 1", -1, + &pStmt, 0); + if( rc!=SQLITE_OK || pStmt==0 ){ + fprintf(stderr, "%s\n", sqlite3_errmsg(db)); + sqlite3_close(db); + exit(1); + } + while( SQLITE_ROW==sqlite3_step(pStmt) ){ + if( zIdx==0 || strcmp(zIdx, (const char*)sqlite3_column_text(pStmt,0))!=0 ){ + if( zIdx ) printf("\n"); + sqlite3_free(zIdx); + zIdx = sqlite3_mprintf("%s", sqlite3_column_text(pStmt,0)); + printf("%s:\n", zIdx); + }else{ + printf(" -----------------------------------------------------------\n"); + } + printf(" nEq = %s\n", sqlite3_column_text(pStmt,1)); + printf(" nLt = %s\n", sqlite3_column_text(pStmt,2)); + printf(" nDLt = %s\n", sqlite3_column_text(pStmt,3)); + printf(" sample = x'"); + aSample = sqlite3_column_blob(pStmt,4); + nSample = sqlite3_column_bytes(pStmt,4); + for(j=0; jnSample ){ + printf(" \n"); + continue; + } + y = mxHdr = (int)iVal; + while( xmxHdr ) break; + if( iVal<0 ) break; + switch( iVal ){ + case 0: sz = 0; break; + case 1: sz = 1; break; + case 2: sz = 2; break; + case 3: sz = 3; break; + case 4: sz = 4; break; + case 5: sz = 6; break; + case 6: sz = 8; break; + case 7: sz = 8; break; + case 8: sz = 0; break; + case 9: sz = 0; break; + case 10: + case 11: sz = 0; break; + default: sz = (int)(iVal-12)/2; break; + } + if( y+sz>nSample ) break; + if( iVal==0 ){ + printf("%sNULL", zSep); + }else if( iVal<=7 ){ + v = (signed char)aSample[y]; + for(j=1; j