fix: for series limit comparison on explore with chart = Query

[hughhhh]

SUMMARY

Duck typing on query context to handle whenever the users is requesting to run a Query vs. SqlaTable in explore. This specifically fixes the issue with time comparisons in time series queries

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #20989 (c669fa5) into master (eec6e57) will decrease coverage by 0.21%.
The diff coverage is 75.00%.

❗ Current head c669fa5 differs from pull request most recent head 1f4f059. Consider uploading reports for the commit 1f4f059 to get more accurate results

@@            Coverage Diff             @@
##           master   #20989      +/-   ##
==========================================
- Coverage   66.34%   66.13%   -0.22%     
==========================================
  Files        1767     1767              
  Lines       67284    67286       +2     
  Branches     7140     7140              
==========================================
- Hits        44642    44501     -141     
- Misses      20815    20958     +143     
  Partials     1827     1827              

Flag	Coverage Δ
hive	?
mysql	80.92% <75.00%> (-0.01%)	⬇️
postgres	80.99% <75.00%> (-0.01%)	⬇️
presto	?
python	81.04% <75.00%> (-0.44%)	⬇️
sqlite	?
unit	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
superset/common/query_context_processor.py	89.28% <75.00%> (-0.36%)	⬇️
superset/db_engines/hive.py	0.00% <0.00%> (-85.19%)	⬇️
superset/db_engine_specs/hive.py	71.04% <0.00%> (-15.84%)	⬇️
superset/db_engine_specs/presto.py	81.36% <0.00%> (-6.62%)	⬇️
superset/db_engine_specs/sqlite.py	91.89% <0.00%> (-5.41%)	⬇️
superset/utils/celery.py	86.20% <0.00%> (-3.45%)	⬇️
superset/connectors/sqla/utils.py	86.36% <0.00%> (-2.28%)	⬇️
superset/models/sql_lab.py	75.00% <0.00%> (-2.02%)	⬇️
superset/initialization/__init__.py	89.96% <0.00%> (-1.74%)	⬇️
superset/result_set.py	96.24% <0.00%> (-1.51%)	⬇️
... and 5 more

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