Files
s3/weed/filer/postgres/postgres_sql_gen.go
zooqueen dd74d3e6d6 Replace AGPL MinIO fork with Apache-2.0 SeaweedFS fork; rebrand CLI weed->s3
hanzoai/s3 was an AGPL-3.0 MinIO fork whose network-copyleft blocks embedding
and reselling as a managed service. Replace it wholesale with a fork of
SeaweedFS (github.com/seaweedfs/seaweedfs, Apache-2.0, Go) which ships a
built-in S3 gateway + Filer.

- License: AGPL-3.0 -> Apache-2.0 (upstream LICENSE kept verbatim, incl.
  "Copyright 2025 Chris Lu"); NOTICE added crediting SeaweedFS. No AGPL/BUSL/
  SSPL/GPL or enterprise ("ee") files remain.
- Module: go.mod path set to github.com/hanzoai/s3 with a self-replace
  (replace github.com/seaweedfs/seaweedfs => ./) so the ~1800 internal Go files
  keep their upstream import paths with zero churn. Internal identifiers and
  import paths are intentionally NOT renamed.
- CLI rebrand: the binary is built as `s3` (was `weed`); root usage, per-command
  help/usage/flag strings, shell autocomplete program name, and the product name
  in CLI output now read "Hanzo S3" / `s3`. Users never see `weed`.
  (e.g. `s3 server`, `s3 filer`, `s3 master`, `s3 volume`, `s3 s3`, `s3 mount`.)
- Build: `make` (or `go build -o s3 ./weed`) builds the `s3` binary green;
  `cmd/weed-db` and `cmd/weed-sql` also build; `go vet ./weed/command/` clean.
- README/LLM.md rewritten for Hanzo S3; AGENTS.md/CLAUDE.md symlinks preserved.
- Dropped a 33MB prebuilt Mach-O `stress` binary upstream had committed; `.gitignore`
  updated to ignore the `s3` build output.
2026-06-18 23:41:25 -07:00

76 lines
2.7 KiB
Go

package postgres
import (
"fmt"
_ "github.com/jackc/pgx/v5/stdlib"
"github.com/seaweedfs/seaweedfs/weed/filer/abstract_sql"
)
type SqlGenPostgres struct {
CreateTableSqlTemplate string
DropTableSqlTemplate string
UpsertQueryTemplate string
// Force byte ordering on a locale-aware name column; see ConfigureListOrdering.
ForceBinaryCollation bool
}
// DefaultUpsertQuery keeps INSERTs idempotent so a duplicate-key failure
// (23505) cannot poison the surrounding transaction (25P02). Used when the
// user enables upsert but does not provide their own template.
const DefaultUpsertQuery = `INSERT INTO "%s" (dirhash,name,directory,meta) VALUES($1,$2,$3,$4) ON CONFLICT (dirhash, name) DO UPDATE SET directory=EXCLUDED.directory, meta=EXCLUDED.meta`
var (
_ = abstract_sql.SqlGenerator(&SqlGenPostgres{})
)
func (gen *SqlGenPostgres) GetSqlInsert(tableName string) string {
if gen.UpsertQueryTemplate != "" {
return fmt.Sprintf(gen.UpsertQueryTemplate, tableName)
} else {
return fmt.Sprintf(`INSERT INTO "%s" (dirhash,name,directory,meta) VALUES($1,$2,$3,$4)`, tableName)
}
}
func (gen *SqlGenPostgres) GetSqlUpdate(tableName string) string {
return fmt.Sprintf(`UPDATE "%s" SET meta=$1 WHERE dirhash=$2 AND name=$3 AND directory=$4`, tableName)
}
func (gen *SqlGenPostgres) GetSqlFind(tableName string) string {
return fmt.Sprintf(`SELECT meta FROM "%s" WHERE dirhash=$1 AND name=$2 AND directory=$3`, tableName)
}
func (gen *SqlGenPostgres) GetSqlDelete(tableName string) string {
return fmt.Sprintf(`DELETE FROM "%s" WHERE dirhash=$1 AND name=$2 AND directory=$3`, tableName)
}
func (gen *SqlGenPostgres) GetSqlDeleteFolderChildren(tableName string) string {
return fmt.Sprintf(`DELETE FROM "%s" WHERE dirhash=$1 AND directory=$2`, tableName)
}
// nameExpr forces byte ordering on a locale-aware column via COLLATE "C".
func (gen *SqlGenPostgres) nameExpr() string {
if gen.ForceBinaryCollation {
return `name COLLATE "C"`
}
return "name"
}
func (gen *SqlGenPostgres) GetSqlListExclusive(tableName string) string {
name := gen.nameExpr()
return fmt.Sprintf(`SELECT NAME, meta FROM "%s" WHERE dirhash=$1 AND %s>$2 AND directory=$3 AND %s like $4 ORDER BY %s ASC LIMIT $5`, tableName, name, name, name)
}
func (gen *SqlGenPostgres) GetSqlListInclusive(tableName string) string {
name := gen.nameExpr()
return fmt.Sprintf(`SELECT NAME, meta FROM "%s" WHERE dirhash=$1 AND %s>=$2 AND directory=$3 AND %s like $4 ORDER BY %s ASC LIMIT $5`, tableName, name, name, name)
}
func (gen *SqlGenPostgres) GetSqlCreateTable(tableName string) string {
return fmt.Sprintf(gen.CreateTableSqlTemplate, tableName)
}
func (gen *SqlGenPostgres) GetSqlDropTable(tableName string) string {
return fmt.Sprintf(gen.DropTableSqlTemplate, tableName)
}