sql, opt: implements index skip scan#39668

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ridwanmsharif wants to merge 4 commits intocockroachdb:masterfrom ridwanmsharif:index-skip-scan

+1,698-315

Commits on Aug 23, 2019

sql: allow index-skip-scans to specify the prefix length
Ridwan Sharif
committed
opt: plan index skip scans
Ridwan Sharif
committed
opt: plan index skip scans on secondary indexes through an index join
Ridwan Sharif
committed
opt: add operator for index skip scans
Ridwan Sharif
committed