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Update the ".table" command in the shell to show all tables in all

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attached databases, and to avoid using the deprecated sqlite3_get_table()
function.

FossilOrigin-Name: ce2d06e2533763a8008e7a405630293d8f9a3108
This commit is contained in:
drh
2012-04-23 12:38:05 +00:00
parent 9b8d3572a9
commit 9878123752
3 changed files with 70 additions and 43 deletions
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99
src/shell.c
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@@ -2248,46 +2248,71 @@ static int do_meta_command(char *zLine, struct callback_data *p){
}else
if( c=='t' && n>1 && strncmp(azArg[0], "tables", n)==0 && nArg<3 ){
sqlite3_stmt *pStmt;
char **azResult;
int nRow;
char *zErrMsg;
int nRow, nAlloc;
char *zSql = 0;
int ii;
open_db(p);
if( nArg==1 ){
rc = sqlite3_get_table(p->db,
"SELECT name FROM sqlite_master "
"WHERE type IN ('table','view') AND name NOT LIKE 'sqlite_%' "
"UNION ALL "
"SELECT name FROM sqlite_temp_master "
"WHERE type IN ('table','view') "
"ORDER BY 1",
&azResult, &nRow, 0, &zErrMsg
);
}else{
zShellStatic = azArg[1];
rc = sqlite3_get_table(p->db,
"SELECT name FROM sqlite_master "
"WHERE type IN ('table','view') AND name LIKE shellstatic() "
"UNION ALL "
"SELECT name FROM sqlite_temp_master "
"WHERE type IN ('table','view') AND name LIKE shellstatic() "
"ORDER BY 1",
&azResult, &nRow, 0, &zErrMsg
);
zShellStatic = 0;
rc = sqlite3_prepare_v2(p->db, "PRAGMA database_list", -1, &pStmt, 0);
if( rc ) return rc;
zSql = sqlite3_mprintf(
"SELECT name FROM sqlite_master"
" WHERE type IN ('table','view')"
" AND name NOT LIKE 'sqlite_%%'"
" AND name LIKE ?1");
while( sqlite3_step(pStmt)==SQLITE_ROW ){
const char *zDbName = (const char*)sqlite3_column_text(pStmt, 1);
if( zDbName==0 || strcmp(zDbName,"main")==0 ) continue;
if( strcmp(zDbName,"temp")==0 ){
zSql = sqlite3_mprintf(
"%z UNION ALL "
"SELECT 'temp.' || name FROM sqlite_temp_master"
" WHERE type IN ('table','view')"
" AND name NOT LIKE 'sqlite_%%'"
" AND name LIKE ?1", zSql);
}else{
zSql = sqlite3_mprintf(
"%z UNION ALL "
"SELECT '%q.' || name FROM \"%w\".sqlite_master"
" WHERE type IN ('table','view')"
" AND name NOT LIKE 'sqlite_%%'"
" AND name LIKE ?1", zSql, zDbName, zDbName);
}
}
if( zErrMsg ){
fprintf(stderr,"Error: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
rc = 1;
}else if( rc != SQLITE_OK ){
fprintf(stderr,"Error: querying sqlite_master and sqlite_temp_master\n");
rc = 1;
sqlite3_finalize(pStmt);
zSql = sqlite3_mprintf("%z ORDER BY 1", zSql);
rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
sqlite3_free(zSql);
if( rc ) return rc;
nRow = nAlloc = 0;
azResult = 0;
if( nArg>1 ){
sqlite3_bind_text(pStmt, 1, azArg[1], -1, SQLITE_TRANSIENT);
}else{
sqlite3_bind_text(pStmt, 1, "%", -1, SQLITE_STATIC);
}
while( sqlite3_step(pStmt)==SQLITE_ROW ){
if( nRow>=nAlloc ){
char **azNew;
int n = nAlloc*2 + 10;
azNew = sqlite3_realloc(azResult, sizeof(azResult[0])*n);
if( azNew==0 ){
fprintf(stderr, "Error: out of memory\n");
break;
}
nAlloc = n;
azResult = azNew;
}
azResult[nRow] = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 0));
if( azResult[nRow] ) nRow++;
}
sqlite3_finalize(pStmt);
if( nRow>0 ){
int len, maxlen = 0;
int i, j;
int nPrintCol, nPrintRow;
for(i=1; i<=nRow; i++){
if( azResult[i]==0 ) continue;
for(i=0; i<nRow; i++){
len = strlen30(azResult[i]);
if( len>maxlen ) maxlen = len;
}
@@ -2295,14 +2320,15 @@ static int do_meta_command(char *zLine, struct callback_data *p){
if( nPrintCol<1 ) nPrintCol = 1;
nPrintRow = (nRow + nPrintCol - 1)/nPrintCol;
for(i=0; i<nPrintRow; i++){
for(j=i+1; j<=nRow; j+=nPrintRow){
char *zSp = j<=nPrintRow ? "" : " ";
for(j=i; j<nRow; j+=nPrintRow){
char *zSp = j<nPrintRow ? "" : " ";
printf("%s%-*s", zSp, maxlen, azResult[j] ? azResult[j] : "");
}
printf("\n");
}
}
sqlite3_free_table(azResult);
for(ii=0; ii<nRow; ii++) sqlite3_free(azResult[ii]);
sqlite3_free(azResult);
}else
if( c=='t' && n>=8 && strncmp(azArg[0], "testctrl", n)==0 && nArg>=2 ){
@@ -2437,6 +2463,7 @@ static int do_meta_command(char *zLine, struct callback_data *p){
}else
if( c=='t' && strncmp(azArg[0], "trace", n)==0 && nArg>1 ){
open_db(p);
output_file_close(p->traceOut);
p->traceOut = output_file_open(azArg[1]);
#ifndef SQLITE_OMIT_TRACE