Fix @Where with ORDER BY query generation

[s13o]

Integration test added.
Fixes: #2266.

[codecov]

Codecov Report

Merging #2267 into master will increase coverage by 20.89%.
The diff coverage is 44.44%.

@@              Coverage Diff              @@
##             master    #2267       +/-   ##
=============================================
+ Coverage     51.64%   72.54%   +20.89%     
- Complexity       47     2055     +2008     
=============================================
  Files            17      258      +241     
  Lines           273     7462     +7189     
  Branches         33      761      +728     
=============================================
+ Hits            141     5413     +5272     
- Misses          117     1699     +1582     
- Partials         15      350      +335     

Flag	Coverage Δ	Complexity Δ
#unittests	72.54% <44.44%> (+20.89%)	2055.00 <2.00> (+2008.00)

Impacted Files	Coverage Δ	Complexity Δ
...data/spanner/repository/query/SqlSpannerQuery.java	85.03% <25.00%> (ø)	31.00 <0.00> (?)
...spanner/repository/query/AbstractSpannerQuery.java	44.11% <33.33%> (ø)	6.00 <2.00> (?)
...epository/query/SpannerStatementQueryExecutor.java	84.61% <100.00%> (ø)	68.00 <0.00> (?)
...sub/integration/outbound/PubSubMessageHandler.java	75.00% <0.00%> (ø)	17.00% <0.00%> (?%)
...urity/FirebaseAuthenticationAutoConfiguration.java	100.00% <0.00%> (ø)	5.00% <0.00%> (?%)
...re/mapping/SpannerPersistentEntityInformation.java	100.00% <0.00%> (ø)	3.00% <0.00%> (?%)
...store/repository/query/AbstractDatastoreQuery.java	73.68% <0.00%> (ø)	5.00% <0.00%> (?%)
...sitory/support/DatastoreRepositoryFactoryBean.java	83.33% <0.00%> (ø)	4.00% <0.00%> (?%)
...ta/spanner/core/mapping/SpannerMappingContext.java	100.00% <0.00%> (ø)	10.00% <0.00%> (?%)
...store/mapping/FirestorePersistentPropertyImpl.java	75.00% <0.00%> (ø)	3.00% <0.00%> (?%)
... and 234 more

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[dmitry-s]

LGTM, but please add a test to verify the final sql string

[dmitry-s]

LGTM