Adding FROM_UNIXTIME() to SQLite3 #758

deps/Makefile

@@ -40,7 +40,10 @@ mariadb_client: mariadb-client-library/mariadb_client/include/my_config.h
 
 
 sqlite3/sqlite3/sqlite3.o:
-	cd sqlite3/sqlite3 && ${CC} -O2 -c -o sqlite3.o sqlite3.c
+	cd sqlite3 && rm -rf sqlite-amalgamation-3150000
+	cd sqlite3 && tar -zxf sqlite-amalgamation-3150000.tar.gz
+	cd sqlite3/sqlite3 && patch sqlite3.c < ../from_unixtime.patch
+	cd sqlite3/sqlite3 && ${CC} -O2 -c -o sqlite3.o sqlite3.c -DSQLITE_ENABLE_MEMORY_MANAGEMENT
 
 sqlite3: sqlite3/sqlite3/sqlite3.o
 

deps/sqlite3/from_unixtime.patch

@@ -0,0 +1,38 @@
+--- sqlite-amalgamation-3150000/sqlite3.c	2016-10-14 18:48:16.000000000 +0000
++++ /tmp/sqlite3.c	2016-10-28 00:22:06.993102669 +0000
+@@ -19426,6 +19426,27 @@
+ }
+
+ /*
++**    from_unixtime( TIMESTRING)
++**
++** Return YYYY-MM-DD HH:MM:SS
++*/
++static void from_unixtimeFunc(
++  sqlite3_context *context,
++  int argc,
++  sqlite3_value **argv
++){
++  DateTime x;
++  if( isDate(context, 1, argv, &x)==0 ){
++		parseModifier(context, (char*)"unixepoch", &x);
++    char zBuf[100];
++    computeYMD_HMS(&x);
++    sqlite3_snprintf(sizeof(zBuf), zBuf, "%04d-%02d-%02d %02d:%02d:%02d",
++                     x.Y, x.M, x.D, x.h, x.m, (int)(x.s));
++    sqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT);
++  }
++}
++
++/*
+ **    time( TIMESTRING, MOD, MOD, ...)
+ **
+ ** Return HH:MM:SS
+@@ -19715,6 +19736,7 @@
+     DFUNCTION(date,             -1, 0, 0, dateFunc      ),
+     DFUNCTION(time,             -1, 0, 0, timeFunc      ),
+     DFUNCTION(datetime,         -1, 0, 0, datetimeFunc  ),
++    DFUNCTION(from_unixtime,    -1, 0, 0, from_unixtimeFunc  ),
+     DFUNCTION(strftime,         -1, 0, 0, strftimeFunc  ),
+     DFUNCTION(current_time,      0, 0, 0, ctimeFunc     ),
+     DFUNCTION(current_timestamp, 0, 0, 0, ctimestampFunc),