The get_imdc_meta_info function returns metadata for a specified IMDC.
Syntax
SELECT * FROM get_imdc_meta_info ( input imdc (imdc_name) );
Input
Ignored. Use the empty table NC_SYSTEM.NC_DUMMY (or any other table).
Arguments
- imdc
- Specifies the name of the IMDC whose metadata is to be returned.
Schema of Output
| Column Name | Description |
|---|---|
| NodeIp | IP address of the node that hosts the data. |
| TaskIdx | Task index of the partition that hosts the data. |
| Name | Name of the IMDC. |
| RowCount | Number of IMDC rows in the partition. |
| BlockCount | Number of blocks used by the IMDC in the partition. |
| TotalMemBytes | Total memory used by the IMDC in the partition. |
| MaxInMemBytes | Maximum number of bytes that the IMDC can use in memory. (Additional content overflows to the disk.) |
| ColName | IMDC column name. |
| ColType | IMDC column type. |
| ColMem | Memory allocated to IMDC column. |