[CALCITE-1676] In file adapter, scan directory for .csv, .json and .gz files

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.0
• Assignee: Julian Hyde
• Reporter: Julian Hyde
• Created: 08/Mar/17 02:06
• Updated: 24/Mar/17 03:20
• Resolved: 08/Mar/17 17:46

Description

File adapter should scan the directory for .csv and .json files and convert each into a table. If the files have a .gz suffix they are assumed to be gzip-compressed files.

The first line of a .csv file is the column headers. If the file is empty, the file adapter gives the table a single column, EmptyFileHasNoColumns BOOLEAN.