[SPARK-17446] [SQL] No total size for data source tables in InMemoryCatalog

[wzhfy]

What changes were proposed in this pull request?

For data source table in InMemoryCatalog, it's catalogTable.storage.locationUri is None, so total size can't be calculated. But we can use the path parameter in catalogTable.storage.properties to calculate size.

How was this patch tested?

fix test case

[wzhfy]

@cloud-fan@gatorsmile

[SparkQA]

Test build #65089 has finished for PR 15012 at commit 8276ab0.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[cloud-fan]

can you hold it for a while? We are consolidating locationUri for Hive serde table and path for datasource table recently.

[wzhfy]

@cloud-fan OK, please let me know when it's done.

[cloud-fan]

PR is already sent: #15024

[wzhfy]

The issue is resolved after merging #15024, so I'll close this pr.