internal/postgres: change reference to documentation

References to the documentation table in GetPackageSymbols and
getUnitSymbols are changed to new_documentation.

Change-Id: I25adef39f1fcb038fd1b05bb08de8ba75df84d62
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/303689
Trust: Julie Qiu <julie@golang.org>
Run-TryBot: Julie Qiu <julie@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jamal Carvalho <jamal@golang.org>
diff --git a/internal/postgres/symbol.go b/internal/postgres/symbol.go
index f117bba..5a15de1 100644
--- a/internal/postgres/symbol.go
+++ b/internal/postgres/symbol.go
@@ -298,7 +298,7 @@
             d.goos,
             d.goarch
         FROM documentation_symbols ds
-        INNER JOIN documentation d ON d.id = ds.documentation_id
+        INNER JOIN new_documentation d ON d.id = ds.documentation_id
         INNER JOIN package_symbols ps ON ds.package_symbol_id = ps.id
         INNER JOIN symbol_names s1 ON ps.symbol_name_id = s1.id
         INNER JOIN symbol_names s2 ON ps.parent_symbol_name_id = s2.id
diff --git a/internal/postgres/symbol_history.go b/internal/postgres/symbol_history.go
index 9e8b443..99e98e9 100644
--- a/internal/postgres/symbol_history.go
+++ b/internal/postgres/symbol_history.go
@@ -29,7 +29,7 @@
             d.goarch
         FROM modules m
         INNER JOIN units u ON u.module_id = m.id
-        INNER JOIN documentation d ON d.unit_id = u.id
+        INNER JOIN new_documentation d ON d.unit_id = u.id
         INNER JOIN documentation_symbols ds ON ds.documentation_id = d.id
         INNER JOIN package_symbols ps ON ps.id = ds.package_symbol_id
         INNER JOIN paths p1 ON u.path_id = p1.id