public int ExecuteQuery(string sql, IResultWriter sw, Action <Int64> setResults, string context = "", Globals.ResultWriterDestination dest = Globals.ResultWriterDestination.stdOut)
{
Int64 numResults = 0;
if (sql.Contains("ROW_NUMBER("))
{
SQLitePCL.Functions.core.CoreFn.RowNumDictionary = new Dictionary <string, int>();
}
if (sql.Contains("JSON("))
{
var match = Regex.Match(sql, @"JSON\((?<key>.*?)\)");
sql = Regex.Replace(sql, @"JSON\(\w*\)", "", RegexOptions.IgnoreCase);
sw.Key = match.Groups["key"].Value;
}
int resp = (int)ErrorCode.Ok;
try
{
var stmts = DbConnection.PrepareAll(CleanSql(sql));
foreach (var stmt in stmts)
{
if (stmt.SQL != null && stmt.MoveNext())
{
var headers = stmt.Columns.Select(col => col.Name).ToList <string>();
sw
.BeginContext(context, dest)
.WriteHeaders(headers, dest)
.WriteResult(stmt.Current, dest);
// Write the rest...
while (stmt.MoveNext())
{
numResults++;
sw.WriteResult(stmt.Current, dest);
}
sw.EndContext(dest);
}
}
}
catch (SQLiteException e)
{
resp = (int)e.ErrorCode;
LastError = e.Message + " -- " + raw.sqlite3_errmsg(RawDbConnection) + " -- on query: " + sql;
}
finally
{
sw.Flush();
Int64 changes = DbConnection.Changes;
// if we didn't make any db changes, then we performed a query, so let's return the number of results in that query
if (changes == 0 && numResults != 0)
{
changes = numResults;
}
setResults(changes);
}
return(resp);
}
