From 3ee83efec1a5d12d1339b55f1e028a8db2641047 Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Wed, 8 Mar 2017 17:56:54 +0000
Subject: [PATCH] In the ".sha3sum" command, if there is a LIKE pattern, show
 the hashes for each table separately.  Without a LIKE pattern, show a single
 hash over the entire database.

FossilOrigin-Name: 30f878832820ce7ccc4627c4f0f98fbe82f8b0f6
---
 manifest      | 12 ++++++------
 manifest.uuid |  2 +-
 src/shell.c   | 37 +++++++++++++++++++++++++++++++++----
 3 files changed, 40 insertions(+), 11 deletions(-)

diff --git a/manifest b/manifest
index 97d4af1fb1..ab4ba0a547 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Add\sthe\s".sha3sum"\scommand\sto\sthe\sCLI\s-\sused\sto\scompute\sa\scryptographic\shash\nof\sthe\s<em>content</em>\sof\sa\sdatabase\sfile\sor\sof\sindividual\stables\swith\sin\nthat\sfile.
-D 2017-03-08T16:10:34.827
+C In\sthe\s".sha3sum"\scommand,\sif\sthere\sis\sa\sLIKE\spattern,\sshow\sthe\shashes\sfor\neach\stable\sseparately.\s\sWithout\sa\sLIKE\spattern,\sshow\sa\ssingle\shash\sover\sthe\nentire\sdatabase.
+D 2017-03-08T17:56:54.566
 F Makefile.in edb6bcdd37748d2b1c3422ff727c748df7ffe918
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc a89ea37ab5928026001569f056973b9059492fe2
@@ -400,7 +400,7 @@ F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
 F src/resolve.c 3e518b962d932a997fae373366880fc028c75706
 F src/rowset.c 7b7e7e479212e65b723bf40128c7b36dc5afdfac
 F src/select.c d12f3539f80db38b09015561b569e0eb1c4b6c5f
-F src/shell.c 8cebab1fdfb7427216c63a46d9116d31ef06dd55
+F src/shell.c bf10f16352e930e37d26813b5efbf57e89680922
 F src/sqlite.h.in 4d0c08f8640c586564a7032b259c5f69bf397850
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h 8648034aa702469afb553231677306cc6492a1ae
@@ -1564,7 +1564,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 54ef7abd7f5b16f4b29c9519d283e142c9340fbf
-R 1784a0b42056ce37f7cf91782b133804
+P fc663799075a22b0a61a6a114116bb2d1b96d4ab
+R ce49cf9f2aa65eda762d2f7f5e9b2cf0
 U drh
-Z 89ed86e3a2610bc780c3304d2a434090
+Z a6a2f37fa5651fb024df2d5d55e36e09
diff --git a/manifest.uuid b/manifest.uuid
index c49a19c8c2..086a9494b1 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-fc663799075a22b0a61a6a114116bb2d1b96d4ab
\ No newline at end of file
+30f878832820ce7ccc4627c4f0f98fbe82f8b0f6
\ No newline at end of file
diff --git a/src/shell.c b/src/shell.c
index 06cf36cccc..2beea32552 100644
--- a/src/shell.c
+++ b/src/shell.c
@@ -1260,6 +1260,10 @@ static void sha3QueryFunc(
     }
     nCol = sqlite3_column_count(pStmt);
     z = sqlite3_sql(pStmt);
+    if( z==0 ){
+      sqlite3_finalize(pStmt);
+      continue;
+    }
     n = (int)strlen(z);
     hash_step_vformat(&cx,"S%d:",n);
     SHA3Update(&cx,(unsigned char*)z,n);
@@ -5701,10 +5705,13 @@ static int do_meta_command(char *zLine, ShellState *p){
     const char *zLike = 0;   /* Which table to checksum. 0 means everything */
     int i;                   /* Loop counter */
     int bSchema = 0;         /* Also hash the schema */
+    int bSeparate = 0;       /* Hash each table separately */
     int iSize = 224;         /* Hash algorithm to use */
     int bDebug = 0;          /* Only show the query that would have run */
     sqlite3_stmt *pStmt;     /* For querying tables names */
     char *zSql;              /* SQL to be run */
+    char *zSep;              /* Separator */
+    ShellText sSql;          /* Complete SQL for the query to run the hash */
     ShellText sQuery;        /* Set of queries used to read all content */
     for(i=1; i<nArg; i++){
       const char *z = azArg[i];
@@ -5724,7 +5731,7 @@ static int do_meta_command(char *zLine, ShellState *p){
         }else
         {
           utf8_printf(stderr, "Unknown option \"%s\" on \"%s\"\n",
-                      azArg[0], azArg[i]);
+                      azArg[i], azArg[0]);
           raw_printf(stderr, "Should be one of: --schema"
                              " --sha3-224 --sha3-255 --sha3-384 --sha3-512\n");
           rc = 1;
@@ -5736,7 +5743,8 @@ static int do_meta_command(char *zLine, ShellState *p){
         goto meta_command_exit;
       }else{
         zLike = z;
-        if( sqlite3_strlike("sqlite3_%", zLike, 0)==0 ) bSchema = 1;
+        bSeparate = 1;
+        if( sqlite3_strlike("sqlite_%", zLike, 0)==0 ) bSchema = 1;
       }
     }
     if( bSchema ){
@@ -5752,6 +5760,9 @@ static int do_meta_command(char *zLine, ShellState *p){
     }
     sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
     initText(&sQuery);
+    initText(&sSql);
+    appendText(&sSql, "WITH [sha3sum$query](a,b) AS(",0);
+    zSep = "VALUES(";
     while( SQLITE_ROW==sqlite3_step(pStmt) ){
       const char *zTab = (const char*)sqlite3_column_text(pStmt,0);
       if( zLike && sqlite3_strlike(zLike, zTab, 0)!=0 ) continue;
@@ -5774,11 +5785,29 @@ static int do_meta_command(char *zLine, ShellState *p){
         appendText(&sQuery, zTab, 0);
         appendText(&sQuery, " ORDER BY tbl, idx, rowid;\n", 0);
       }
+      appendText(&sSql, zSep, 0);
+      appendText(&sSql, sQuery.z, '\'');
+      sQuery.n = 0;
+      appendText(&sSql, ",", 0);
+      appendText(&sSql, zTab, '\'');
+      zSep = "),(";
     }
     sqlite3_finalize(pStmt);
-    zSql = sqlite3_mprintf("SELECT lower(hex(sha3_query(%Q,%d))) AS hash;",
-                           sQuery.z, iSize);
+    if( bSeparate ){
+      zSql = sqlite3_mprintf(
+          "%s))"
+          " SELECT lower(hex(sha3_query(a,%d))) AS hash, b AS label"
+          "   FROM [sha3sum$query]",
+          sSql.z, iSize);
+    }else{
+      zSql = sqlite3_mprintf(
+          "%s))"
+          " SELECT lower(hex(sha3_query(group_concat(a,''),%d))) AS hash"
+          "   FROM [sha3sum$query]",
+          sSql.z, iSize);
+    }
     freeText(&sQuery);
+    freeText(&sSql);
     if( bDebug ){
       utf8_printf(p->out, "%s\n", zSql);
     }else{