add -unbuffered flag to zed and zq #4320
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The -unbuffered flag disables most output buffering. It does this in part at the io.Writer level in zio/emitter and in part by setting zbuf.ScannerBatchSize to 1 to disable batching in non-ZNG scanners created by zbuf.NewScanner. Limitations: * Does not disable output buffering due to ZNG framing (but can be combined with -zngframethresh=0 for that) * Does not disable the initial input buffering necessary for auto-detection (but can be combined with -i for that) * Does not disable the limited input buffering in most readers
mattnibs
approved these changes
Jan 23, 2023
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The -unbuffered flag disables most output buffering. It does this in part at the io.Writer level in zio/emitter and in part by setting zbuf.ScannerBatchSize to 1 to disable batching in non-ZNG scanners created by zbuf.NewScanner.
Limitations:
Does not disable output buffering due to ZNG framing (but can be combined with -zngframethresh=0 for that)
Does not disable the initial input buffering necessary for auto-detection (but can be combined with -i for that)
Does not disable the limited input buffering in most readers
Fixes #1796