Inner Transaction Search Pt 1

[winder]

Summary

This is the first part of the inner-transaction search. It adds an inner transaction stub to the transaction table.

TODO in follow-up PRs:

1. migration to add old inner transactions to the transaction table.
2. update queries to join in the parent transaction bytes.

Test Plan

New unit tests.

[codecov-commenter]

Codecov Report

Merging #684 (219afcc) into develop (d6f667d) will decrease coverage by 0.01%.
The diff coverage is 63.23%.

@@             Coverage Diff             @@
##           develop     #684      +/-   ##
===========================================
- Coverage    53.32%   53.30%   -0.02%     
===========================================
  Files           23       23              
  Lines         3606     3671      +65     
===========================================
+ Hits          1923     1957      +34     
- Misses        1426     1453      +27     
- Partials       257      261       +4     

Impacted Files	Coverage Δ
idb/postgres/internal/encoding/decode.go	61.39% <0.00%> (-6.44%)	⬇️
idb/postgres/postgres.go	46.44% <58.33%> (-0.04%)	⬇️
idb/postgres/postgres_migrations.go	34.78% <63.88%> (-1.27%)	⬇️
idb/postgres/internal/encoding/encode.go	87.28% <70.00%> (-0.75%)	⬇️
idb/postgres/internal/writer/writer.go	83.56% <77.77%> (-1.64%)	⬇️

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[tolikzinovyev]

The biggest issue I see is dropping inner txns in internal/encoding. Please see my last comment in case you didn't: #684 (comment).

[winder]

The biggest issue I see is dropping inner txns in internal/encoding. Please see my last comment in case you didn't: #684 (comment).

Thanks. I moved this out of encode.go.

[tolikzinovyev]

One tiny change and this is good to go! https://github.com/algorand/indexer/pull/684/files#r720499387

[tolikzinovyev]

Thanks!