[sql] Import SQLite 3.17.0.

third_party/sqlite/src/tool/showstat4.c

 /*
 ** This utility program decodes and displays the content of the
 ** sqlite_stat4 table in the database file named on the command
 ** line.
 */
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #include <ctype.h>
 #include "sqlite3.h"
@@ skipping 112 matching lines @@
         }else{
           printf("%s%lld", zSep, v);
         }
       }else if( (iVal&1)==0 ){
         printf("%sx'", zSep);
         for(j=0; j<sz; j++){
           printf("%02x", aSample[y+j]);
         }
         printf("'");
       }else{
-        printf("%s\"", zSep);
+        printf("%s'", zSep);
         for(j=0; j<sz; j++){
           char c = (char)aSample[y+j];
           if( ISPRINT(c) ){
-            if( c=='"' || c=='\\' ) putchar('\\');
+            if( c=='\'' || c=='\\' ) putchar('\\');
             putchar(c);
           }else if( c=='\n' ){
             printf("\\n");
           }else if( c=='\t' ){
             printf("\\t");
           }else if( c=='\r' ){
             printf("\\r");
           }else{
             printf("\\%03o", c);
           }
         }
-        printf("\"");
+        printf("'");
       }
       zSep = ",";
       y += sz;
     }
     printf("\n");
   }
   sqlite3_free(zIdx);
   sqlite3_finalize(pStmt);
   sqlite3_close(db);
   return 0;
 }