colexec: specify the superset of all go dependencies in templates

The changes to the _tmpl.go files are needed for bazel to compile
auto-generated code in its sandbox. We currently rely on goimports to
fill in the dependencies in the eg.go files, as needed, but that does
not do the right thing in bazel.

This diff may ultimately turn out to be unnecessary, but was quicker to
do it this way than to figure out why goimports in the bazel sandbox
doesn't fill in dependencies appropriately. Hopefully the diff is
uncontroversial.

Release note: None

pkg/sql/colexec/cast_tmpl.go

@@ -26,6 +26,7 @@ import (
 
 	"github.com/cockroachdb/apd/v2"
 	"github.com/cockroachdb/cockroach/pkg/col/coldata"
+	"github.com/cockroachdb/cockroach/pkg/col/coldataext"
 	"github.com/cockroachdb/cockroach/pkg/col/typeconv"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexecbase"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexecbase/colexecerror"
@@ -35,6 +36,10 @@ import (
 	"github.com/cockroachdb/errors"
 )
 
+// Workaround for bazel auto-generated code. goimports does not automatically
+// pick up the right packages when run within the bazel sandbox.
+var _ coldataext.Datum
+
 // {{/*
 
 type _R_GO_TYPE interface{}

pkg/sql/colexec/const_tmpl.go

@@ -22,15 +22,24 @@ package colexec
 import (
 	"context"
 
+	"github.com/cockroachdb/apd/v2"
 	"github.com/cockroachdb/cockroach/pkg/col/coldata"
 	"github.com/cockroachdb/cockroach/pkg/col/typeconv"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexec/execgen"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexecbase"
 	"github.com/cockroachdb/cockroach/pkg/sql/colmem"
 	"github.com/cockroachdb/cockroach/pkg/sql/types"
+	"github.com/cockroachdb/cockroach/pkg/util/duration"
 	"github.com/cockroachdb/errors"
 )
 
+// Workaround for bazel auto-generated code. goimports does not automatically
+// pick up the right packages when run within the bazel sandbox.
+var (
+	_ apd.Context
+	_ duration.Duration
+)
+
 // {{/*
 
 // Declarations to make the template compile properly.

pkg/sql/colexec/distinct_tmpl.go

@@ -22,15 +22,28 @@ package colexec
 import (
 	"context"
 
+	"github.com/cockroachdb/apd/v2"
 	"github.com/cockroachdb/cockroach/pkg/col/coldata"
+	"github.com/cockroachdb/cockroach/pkg/col/coldataext"
 	"github.com/cockroachdb/cockroach/pkg/col/typeconv"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexec/execgen"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexecbase"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexecbase/colexecerror"
+	"github.com/cockroachdb/cockroach/pkg/sql/sem/tree"
 	"github.com/cockroachdb/cockroach/pkg/sql/types"
+	"github.com/cockroachdb/cockroach/pkg/util/duration"
 	"github.com/cockroachdb/errors"
 )
 
+// Workaround for bazel auto-generated code. goimports does not automatically
+// pick up the right packages when run within the bazel sandbox.
+var (
+	_ apd.Context
+	_ coldataext.Datum
+	_ duration.Duration
+	_ tree.AggType
+)
+
 // OrderedDistinctColsToOperators is a utility function that given an input and
 // a slice of columns, creates a chain of distinct operators and returns the
 // last distinct operator in that chain as well as its output column.

pkg/sql/colexec/hash_utils_tmpl.go

@@ -23,13 +23,22 @@ import (
 	"context"
 
 	"github.com/cockroachdb/cockroach/pkg/col/coldata"
+	"github.com/cockroachdb/cockroach/pkg/col/coldataext"
+	"github.com/cockroachdb/cockroach/pkg/col/typeconv"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexec/execgen"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexecbase/colexecerror"
 	"github.com/cockroachdb/cockroach/pkg/sql/rowenc"
 	"github.com/cockroachdb/cockroach/pkg/sql/types"
 	"github.com/cockroachdb/errors"
 )
 
+// Workaround for bazel auto-generated code. goimports does not automatically
+// pick up the right packages when run within the bazel sandbox.
+var (
+	_ = typeconv.DatumVecCanonicalTypeFamily
+	_ coldataext.Datum
+)
+
 // {{/*
 
 // _GOTYPESLICE is a template Go type slice variable.

pkg/sql/colexec/hashtable_tmpl.go

@@ -21,11 +21,22 @@ package colexec
 
 import (
 	"github.com/cockroachdb/cockroach/pkg/col/coldata"
+	"github.com/cockroachdb/cockroach/pkg/col/coldataext"
+	"github.com/cockroachdb/cockroach/pkg/col/typeconv"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexecbase/colexecerror"
+	"github.com/cockroachdb/cockroach/pkg/sql/sem/tree"
 	"github.com/cockroachdb/cockroach/pkg/sql/types"
 	"github.com/cockroachdb/errors"
 )
 
+// Workaround for bazel auto-generated code. goimports does not automatically
+// pick up the right packages when run within the bazel sandbox.
+var (
+	_ = typeconv.DatumVecCanonicalTypeFamily
+	_ coldataext.Datum
+	_ tree.AggType
+)
+
 // {{/*
 
 // _LEFT_CANONICAL_TYPE_FAMILY is the template variable.

pkg/sql/colexec/mergejoinbase_tmpl.go

@@ -21,11 +21,22 @@ package colexec
 
 import (
 	"github.com/cockroachdb/cockroach/pkg/col/coldata"
+	"github.com/cockroachdb/cockroach/pkg/col/coldataext"
+	"github.com/cockroachdb/cockroach/pkg/col/typeconv"
 	"github.com/cockroachdb/cockroach/pkg/sql/colexecbase/colexecerror"
+	"github.com/cockroachdb/cockroach/pkg/sql/sem/tree"
 	"github.com/cockroachdb/cockroach/pkg/sql/types"
 	"github.com/cockroachdb/errors"
 )
 
+// Workaround for bazel auto-generated code. goimports does not automatically
+// pick up the right packages when run within the bazel sandbox.
+var (
+	_ = typeconv.DatumVecCanonicalTypeFamily
+	_ coldataext.Datum
+	_ tree.AggType
+)
+
 // {{/*
 // Declarations to make the template compile properly.